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Can you help me break this code?

I am working on a collection with unusually long codes. I have not worried about what he paid for the items…but curiosity is getting to me.
The items were collected form the 60's into the early 70's.

CODE for this item:
2GNVXITRUMPDBCF

Full disclosure…this was on a bank note….just saying there are some talented people here….

His notation of what the item is and reference numbers were correct.
TIA,
image
He had no value listed. Current value is $6.
Republic De Guinea Ecuatorial
100 Pesetas
Note dated Oct 12, 1969

El Banco de mexico 10 Pesos 1967 code: 2VLWURTHYIFC

Philippines $10 note series 1937 code: 2KNVBCFPRT

Scanning a bunch: they all start with two. I do not see any with repeated letters in the code???
Successful BST transactions to date: Coindeuce, Cohodk, dantheman984, STONE, LeeG, jy8s, jkal, SeaEagleCoins, Hyperion, silverman68,Meltdown,RichieURich,savoyspecial,Barndog

Comments

  • CaptHenwayCaptHenway Posts: 32,690 ✭✭✭✭✭
    It would help if you gave a ballpark value range.
    Numismatist. 50 year member ANA. Winner of four ANA Heath Literary Awards; three Wayte and Olga Raymond Literary Awards; Numismatist of the Year Award 2009, and Lifetime Achievement Award 2020. Winner numerous NLG Literary Awards.
  • MGLICKERMGLICKER Posts: 7,995 ✭✭✭
    Clue may be the VXI....XVI would be $16
  • Uh....... image
  • WillieBoyd2WillieBoyd2 Posts: 5,266 ✭✭✭✭✭
    2GNVXITRUMPDBCF

    Belonged to Donald Trump?

    image
    https://www.brianrxm.com
    The Mysterious Egyptian Magic Coin
    Coins in Movies
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  • CoinZipCoinZip Posts: 3,253 ✭✭✭
    2GNVXIDBCF
    0123456789

    just remove the trump

    Coin Club Benefit auctions ..... View the Lots

  • ColonelJessupColonelJessup Posts: 6,442 ✭✭✭✭✭
    Some of this info may be month/year of purchase, purchaser's grade, projected market value (for a quote) or other info not relating strictly to cost. My codes also used nulls, repetition masks, substring length descriptors and other little twists. Fresh from computers ('66-'79) and I can't believe how neurotically clever I was at the time.

    With the length of the code string, I find it hard to not think much info like this is part of the encoded data. BTW, the two code strings given so far are not the same length.

    If this is of any help I'd be surprised. . image
    "People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." - Geo. Orwell
  • Give us the codes for a few more.

    Also what type of bank note?

    Morgan Everyman Set
    Member, Society of Silver Dollar Collectors.
    Looking for PCGS AU58+ 1901-P, 1896-O, & 1894-O
  • icsoccericsoccer Posts: 1,339 ✭✭✭
    Rock of Gibraltar 1 Pound Note
    Dated Nov 20th, 1971
    code:
    2KSNCHURPITYE
    Successful BST transactions to date: Coindeuce, Cohodk, dantheman984, STONE, LeeG, jy8s, jkal, SeaEagleCoins, Hyperion, silverman68,Meltdown,RichieURich,savoyspecial,Barndog
  • robertprrobertpr Posts: 6,862 ✭✭✭


    << <i>Rock of Gibraltar 1 Pound Note
    Dated Nov 20th, 1971
    code:
    2KSNCHURPITYE >>



    Could he be using words as filler in the middle of a cost and a minimum asking price?
  • ColonelJessupColonelJessup Posts: 6,442 ✭✭✭✭✭
    How about 10 codes all at once. A pattern may be more easily detectible. image

    This is how the boys and girls at Bletchley did it. OK, Alan Turing might have helped a leetle bit.
    "People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." - Geo. Orwell
  • OldEastsideOldEastside Posts: 4,602 ✭✭✭✭✭
    I find this interesting

    Steve
    Promote the Hobby
  • georgiacop50georgiacop50 Posts: 2,909 ✭✭✭✭
    Apache code-talk Kimosabe...
  • rickoricko Posts: 98,724 ✭✭✭✭✭
    Decoding a notation by an individual dealer is not the same as codebreaking. And attempting to decipher from one or two examples is hopeless. Likely he used some personal reference point as well, which will complicate it further - and yes, I have experience in cryptology. Cheers, RickO
  • spy88spy88 Posts: 764 ✭✭
    I agree with Rick and the Colonel. Any attempt to even begin to decipher them would
    require as many examples as possible. If there is a pattern, it might be noticeable.

    If the individual incorporated any personal/public reference (like the Beale treasure papers),
    it would probably negate any such perceived pattern.
    Everything starts and everything stops at precisely the right time for precisely the right reason.
  • braddickbraddick Posts: 24,747 ✭✭✭✭✭
    I used to use the word, B L A C K S T O N E as each letter represented a number (a word with ten letters, none that repeat).

    Perhaps my thinking fell in line with his in some format.

    peacockcoins

  • ColonelJessupColonelJessup Posts: 6,442 ✭✭✭✭✭


    << <i>I used to use the word, B L A C K S T O N E as each letter represented a number (a word with ten letters, none that repeat).

    Perhaps my thinking fell in line with his in some format. >>



    So your code is BLACKSTONE.

    Want to avoid getting the code broken by repetition? Use some notation that masks 555 such as KFD (literal "55") or KDF - Duplicate previous number "5" to mask the easy decoding of a repetition. 1, 2 and 5 seem the most frequent number to come up.

    Imbedded length descriptor followed by text.

    N (null, any letter not in the code).
    Length code - K for 3 digits following

    N-N-A-K-F-D-B-K-B-J-L-K

    Null null 3 digits "555 null-null-null-null-null" etc ad nauseum What, at the end of the string, looks like characters of your substitution code are actually nulls because the length descriptor.

    N-C-B-L-K-E-B-L-K-L-K-B

    null 4 digits "1250"-null-null- etc The last six characters in the string are (maybe not so coincidentally) part of your base code, but have become nulls based on the length descriptor

    I know a dealer who does something slightly different but his length descriptor and all other characters are in reverse order. image

    If I mess up my coding and decoding blame my clumsiness and need to get to the PO with Heritage's check. image

    The examples may be flawed (see above) but the principle (adapted from security techniques for transmission of high-speed bi-synchronous variable length data strings) is actually rather primitive and easily encoded in your wetware after an hour of your own time coding and decoding your own code in writing

    For Ricko - Maybe this could be called deconstruction of an encoded data string, but (to me) it's just a less difficult notation to decode Could be some semantical differentiation, but, perhaps, closer to an semiotic equivalency. image
    "People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." - Geo. Orwell
  • illini420illini420 Posts: 11,466 ✭✭✭✭✭
    Mixing random numbers into your 10-letter code and/or writing multiple codes on your items (one for cost, one for selling price and maybe even an extra decoy code) will make it much more difficult for your buyers to crack.
  • SmEagle1795SmEagle1795 Posts: 2,199 ✭✭✭✭✭
    Perhaps the first two characters are the date of acquisition?

    G = 7th letter, 2G = 2007?
    K = 11th letter, 2K = 2011?

    More examples would help us - the human brain looks for patterns in anything so we can probably make these two codes into something illogical which would fit the mind's odd interpretation of the world.
    Learn about our world's shared history told through the first millennium of coinage: Colosseo Collection
  • ebaybuyerebaybuyer Posts: 2,984 ✭✭✭
    wayyyyy too much brainstorming about useless information
    regardless of how many posts I have, I don't consider myself an "expert" at anything
  • ambro51ambro51 Posts: 13,941 ✭✭✭✭✭
    I think if ALL your codes along with relavent data were written down in total patterns would emerge and you can fill in so details by common shared strings of letters. Good Luck. Too bad along with his coins you didn't get his books notes and auction catalogs. Therein would lie the clues.... Good Luck *IF* and when you interpret this please report back. Personally, I use ARTICHOKES image
  • braddickbraddick Posts: 24,747 ✭✭✭✭✭


    << <i>

    << <i>I used to use the word, B L A C K S T O N E as each letter represented a number (a word with ten letters, none that repeat).

    Perhaps my thinking fell in line with his in some format. >>



    So your code is BLACKSTONE.

    Want to avoid getting the code broken by repetition? Use some notation that masks 555 such as KFD (literal "55") or KDF - Duplicate previous number "5" to mask the easy decoding of a repetition. 1, 2 and 5 seem the most frequent number to come up.

    Imbedded length descriptor followed by text.

    N (null, any letter not in the code).
    Length code - K for 3 digits following

    image >>



    Yes, it's also my PCGS forum password along with my emails and eBay handles.
    One simple password for all my purposes. Easy to remember too!

    peacockcoins

  • TwoSides2aCoinTwoSides2aCoin Posts: 44,551 ✭✭✭✭✭
    I see a V.I.P. in the code. Not sure if it would CAC. image
  • CoinosaurusCoinosaurus Posts: 9,644 ✭✭✭✭✭


    << <i>For Ricko - Maybe this could be called deconstruction of an encoded data string, but (to me) it's just a less difficult notation to decode Could be some semantical differentiation, but, perhaps, closer to an semiotic equivalency. image >>



    CJ makes my head hurt - and I've been a software professional for 27 years. Pretty soon he is going to start talking in opcodes.
  • SmEagle1795SmEagle1795 Posts: 2,199 ✭✭✭✭✭


    << <i>

    << <i>For Ricko - Maybe this could be called deconstruction of an encoded data string, but (to me) it's just a less difficult notation to decode Could be some semantical differentiation, but, perhaps, closer to an semiotic equivalency. image >>



    CJ makes my head hurt - and I've been a software professional for 27 years. Pretty soon he is going to start talking in opcodes. >>



    I wrote a full-fledged x86 CPU emulator a couple years ago. I saw the world in hex for months after.
    Learn about our world's shared history told through the first millennium of coinage: Colosseo Collection
  • ColonelJessupColonelJessup Posts: 6,442 ✭✭✭✭✭
    Anyone remember TRT?

    I use the Fibonacci series (backwards but only going down from to 8) in some of my passwords.

    Hell, I was working for ATT on 360/40's OS Release 8.0 internals.. We were one of 7 beta sites in the country in 1967. Did a lot of work on the software for the first 2780 bi-synch adapters, but the hardware engineers would sometimes change the 2780 micro-code at night and kaplooie went the entire system. Then I wrote about 20,000 lines of code modifying HASP and CICS.

    Whichever came first, geeks or dweebs, I was one. But no pocket protector, no slide rule image

    (I also walked ten miles through the snow to school every day, and it was uphill both ways.)

    If any acronyms ring a bell, you are an dinosaur.

    Then I discovered Mercury dimes.

    And now I'm a multi-disciplinary dinosaur.

    Betcha I can still program in BAL... image . image . image . image . image . image

    My first code was TRUECOINS. Post 1983 it was FASTMONEY. Post 1999 it was PLAYTHINGS. Draw your own conclusions. They will be accurate. image
    "People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." - Geo. Orwell
  • CoinRaritiesOnlineCoinRaritiesOnline Posts: 3,681 ✭✭✭✭


    << <i>wayyyyy too much brainstorming about useless information >>



    Yes.
  • georgiacop50georgiacop50 Posts: 2,909 ✭✭✭✭
    He said "SPROCKET", not "SOCKET"!
    image

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