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Need help: Poland 1634 or 1654 gold coin

PppPpp Posts: 532 ✭✭✭✭✭

I kept looking at various on line sources and I cant find this coin.
I think this coin could be fake because this coin weighs 3.48 grams which is the correct weight for a ducat but it failed the sigma at 98.6%.

I appreciate any comments regarding this coin. Thank you

Comments

  • ExbritExbrit Posts: 1,365 ✭✭✭✭
    edited July 13, 2025 3:52AM

    1634 Ducat, 3.5G - real or not, I am not sure. Looks off to me.

  • PppPpp Posts: 532 ✭✭✭✭✭

    Thank you for the comments.
    I told my friend it is fake between failing the sigma, and parts of the coin doesn't make sense. On the reverse I cannot find any examples with the date at almost the 12 o’clock position with the castle coupled with the profile on the obverse. It appears several different designs were used. The only thing that made sense was the weight.

  • ExbritExbrit Posts: 1,365 ✭✭✭✭
    edited July 13, 2025 11:06AM

    @Ppp said:
    Thank you for the comments.
    I told my friend it is fake between failing the sigma, and parts of the coin doesn't make sense. On the reverse I cannot find any examples with the date at almost the 12 o’clock position with the castle coupled with the profile on the obverse. It appears several different designs were used. The only thing that made sense was the weight.

    I do not have an image of a 1634, but it is the same as the 1633 below: notice the date:

    What does the sigma test say? What is the diameter?

  • PppPpp Posts: 532 ✭✭✭✭✭

    Exbrit: the outer rim of the reverse of your picture Ducat 1633-1649 is similar (especially the position of the date) however the detail in the center is not. The detail in the center (castle) is more similar to the 1650’s Thorn Ducat (but that is the only similarity as you can tell from the pictures).

    I gave the coin back to my friend.
    The coin failed the sigma at the 98.6 gold setting. I believe it was an arrow to the left.
    I did think of measuring the diameter except everything else didn’t add up so I didn’t and i figured it was probably fake.

  • ExbritExbrit Posts: 1,365 ✭✭✭✭
    edited July 13, 2025 12:32PM

    @Ppp said:
    Exbrit: the outer rim of the reverse of your picture Ducat 1633-1649 is similar (especially the position of the date) however the detail in the center is not. The detail in the center (castle) is more similar to the 1650’s Thorn Ducat (but that is the only similarity as you can tell from the pictures).

    I gave the coin back to my friend.
    The coin failed the sigma at the 98.6 gold setting. I believe it was an arrow to the left.
    I did think of measuring the diameter except everything else didn’t add up so I didn’t and i figured it was probably fake.

    >

    The resolution on my computer isn’t very good, I can see the castle now that I am on a different computer. I also figure it is a fake.

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