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North/South/Central American Coins Thursday, let's see them!

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  • pruebaspruebas Posts: 4,768 ✭✭✭✭✭
    edited September 25, 2025 11:58PM

    @TwoKopeiki said:

    @pruebas said:

    @pruebas said:
    Speaking of Russia…. I bought three plaster replicas of rare Mexican coins supposedly made by the Hermitage Museum in the 1960s at the request of a Mexican researcher who was communicating with them.

    This was apparently the way museums shared coin details back then (at least in the USSR) rather than photos or rubbings.

    I believe the plasters were plated in a Mexican numismatic book around 1972.

    I should dig out the details and post them here as a fun exhibit.

    (I was toying with the idea of donating them to the ANS as a historic artifact.)

    I found them. There are six pieces, since they are uniface.
    Each has an inventory number on the reverse.

    Here are some quick images (some used a flash, sorry).

    Zongolica 8R:
    (This piece is one of 5 known to exist . It was known that the Hermitage had an example.)

    These are cool. I think I was able to find the 1733 by searching the Hermitage website, but not the other two. Theres only the reverse image of the 1733 but i'm not sure it's a match for the plaster. The image shows strike weakness on the top lion and castle while the plaster seems to have more detail preserved. But hard to say for sure.

    https://www.hermitagemuseum.org/digital-collection/3128296?lng=ru

    Would be cool to see a Zongolica in that collection. Hermitage is on my bucket list although with the current political climate it's anyone's guess as to when I would be able to visit.

    Very cool, @TwoKopeiki! And the inventory number matches! It’s such a poor photo, but it’s gotta be the same coin as it was accessioned in 1925 from the Count Stroganov Collection. Maybe the others came from there as well.

    https://hermitagemuseum.org/what-s-on/6959c2c2e8291ddf42f95872ca55cc6c?lng=en

    I tried searching for the others using the inventory numbers but without any luck as well.

    Could they have been deaccessioned or stolen since the fall of the USSR?

  • Plus00VltraPlus00Vltra Posts: 86 ✭✭✭

    @pruebas said:

    @pruebas said:
    Speaking of Russia…. I bought three plaster replicas of rare Mexican coins supposedly made by the Hermitage Museum in the 1960s at the request of a Mexican researcher who was communicating with them.

    This was apparently the way museums shared coin details back then (at least in the USSR) rather than photos or rubbings.

    I believe the plasters were plated in a Mexican numismatic book around 1972.

    I should dig out the details and post them here as a fun exhibit.

    (I was toying with the idea of donating them to the ANS as a historic artifact.)

    I found them. There are six pieces, since they are uniface.
    Each has an inventory number on the reverse.

    Here are some quick images (some used a flash, sorry).

    These are fantastic @pruebas, than you for sharing. How are these made? Specifically, what is the negative intermediate used to make the plaster positive? Is this destructive?

  • pruebaspruebas Posts: 4,768 ✭✭✭✭✭

    @Plus00Vltra said:

    @pruebas said:

    @pruebas said:
    Speaking of Russia…. I bought three plaster replicas of rare Mexican coins supposedly made by the Hermitage Museum in the 1960s at the request of a Mexican researcher who was communicating with them.

    This was apparently the way museums shared coin details back then (at least in the USSR) rather than photos or rubbings.

    I believe the plasters were plated in a Mexican numismatic book around 1972.

    I should dig out the details and post them here as a fun exhibit.

    (I was toying with the idea of donating them to the ANS as a historic artifact.)

    I found them. There are six pieces, since they are uniface.
    Each has an inventory number on the reverse.

    Here are some quick images (some used a flash, sorry).

    These are fantastic @pruebas, than you for sharing. How are these made? Specifically, what is the negative intermediate used to make the plaster positive? Is this destructive?

    I wish I knew! But since they were made in the 1960s (or 70s) in the USSR, I have no idea. I'm suspecting a clay intermediary or something like that.

  • WillieBoyd2WillieBoyd2 Posts: 5,296 ✭✭✭✭✭

    Britain stopped minting four pence coins (known as groats) for home use in 1855.

    Britain minted four pence coins for British Guiana from 1888 to 1945.

    image
    British Guiana Fourpence 1936
    Silver, 17.0 mm, 1.87 gm

    image
    British Guiana Fourpence 1944
    Silver, 17.0 mm, 1.87 gm

    :)

    https://www.brianrxm.com
    The Mysterious Egyptian Magic Coin
    Coins in Movies
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  • ashelandasheland Posts: 23,930 ✭✭✭✭✭

    @Sergey74 said:

    @TwoKopeiki said:
    Don't know the US series to provide a comment on authenticity, but that 1802 looks to be 2/1 overdate.

    Yes, it is.

    That coin has a great look!

    My YouTube Channel

  • pruebaspruebas Posts: 4,768 ✭✭✭✭✭

    @Boosibri said:
    I can’t find another example of this pattern. Perhaps unique?

    Congrats.

    It looks somewhat like an Italian design. Peru has some Italian patterns, so not out of the question.

    Is it catalogued anywhere?

  • BoosibriBoosibri Posts: 12,444 ✭✭✭✭✭
    edited October 6, 2025 11:58AM

    @pruebas said:

    @Boosibri said:
    I can’t find another example of this pattern. Perhaps unique?

    Congrats.

    It looks somewhat like an Italian design. Peru has some Italian patterns, so not out of the question.

    Is it catalogued anywhere?

    Not cataloged anywhere nor is it listed in the Case de Moneda de Santiago book

    Latin American Collection

  • carabonnaircarabonnair Posts: 1,453 ✭✭✭✭✭


    South and North - Buenos Ayres and Canada. I have no idea why these were cut down, but make a pair in my collection. Happy Thursday!

    Gawain

    Pacific Northwest Numismatic Association
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