Home› World & Ancient Coins Forum
Options

Mexican Colonial Silver Combined NGC/PCGS Census by KM-Number

AngryDragonAngryDragon Posts: 95 ✭✭✭
edited October 31, 2026 1:05PM in World & Ancient Coins Forum

Something I have needed for a while and finally realized it could be done. The data is based on an extract I obtained nearly a year ago for a related purpose. It should be easy enough to update. It is a work in progress. Updated as of 10-31-2026

Combined grade and date NGC/PCGS population census histograms by denomination and KM-number

Try it out: https://claude.ai/artifact/R3reZk8HYR9vuhBgYk41vm

Tagged:

Comments

  • Options
    SimonWSimonW Posts: 1,638 ✭✭✭✭✭

    That’s FANTASTIC!!!! Do one for Peru??? Guatemala? Bolivia? This is wonderful.

    I'm BACK!!! Used to be Billet7 on the old forum.

  • Options
    AbueloAbuelo Posts: 2,067 ✭✭✭✭✭

    Very cool.

  • Options
    AngryDragonAngryDragon Posts: 95 ✭✭✭

    @SimonW said:
    That’s FANTASTIC!!!! Do one for Peru??? Guatemala? Bolivia? This is wonderful.

    If we were to make one for Peru, same time period? Spanish Colonial era 1732 - 1821 1/2R, 1R, 2R, 4R and 8R? Or something different? Also, do you have a lookup table for cross-referencing dates with KM-Numbers? That's where most of the work lies. I already had such a table for Mexico so matching it with the populations was less of an effort. DM me or post here.

  • Options
    SimonWSimonW Posts: 1,638 ✭✭✭✭✭

    @AngryDragon said:

    @SimonW said:
    That’s FANTASTIC!!!! Do one for Peru??? Guatemala? Bolivia? This is wonderful.

    If we were to make one for Peru, same time period? Spanish Colonial era 1732 - 1821 1/2R, 1R, 2R, 4R and 8R? Or something different? Also, do you have a lookup table for cross-referencing dates with KM-Numbers? That's where most of the work lies. I already had such a table for Mexico so matching it with the populations was less of an effort. DM me or post here.

    I only need it for the pillar version, but yeah! If I put together the KM number table, you’d be willing to do it?

    I'm BACK!!! Used to be Billet7 on the old forum.

  • Options
    AngryDragonAngryDragon Posts: 95 ✭✭✭

    @SimonW said:
    I only need it for the pillar version, but yeah! If I put together the KM number table, you’d be willing to do it?

    Sure

  • Options
    AngryDragonAngryDragon Posts: 95 ✭✭✭
    edited October 31, 2026 3:19PM

    @SimonW, I gave it a shot. Could you check the data for accuracy?
    Same URL https://claude.ai/artifact/R3reZk8HYR9vuhBgYk41vm

    Thanks

  • Options
    SimonWSimonW Posts: 1,638 ✭✭✭✭✭

    @AngryDragon that’s wonderful! Thank you! There is definitely some missing data, I think it’s because sometimes they list coins in the census with and without the KM number, and they’re distinct, so they list in different places in the PCGS census.

    I'm BACK!!! Used to be Billet7 on the old forum.

Sign In or Register to comment.