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Can someone help me identify the mint mark type for this 1979 Proof set? Also, what is this box around the mint mark?
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7 posts in this topic

79 had two type mint marks I think you have the type one on that coin. The filled S also called the boxy S. The pcgs mint set price guide shows $12 for that set but the type two says $50. Both are a bit high IMO.

Edited by J P M
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On 1/30/2024 at 9:27 AM, J P M said:

79 had two type mint marks I think you have the type one on that coin. The filled S also called the boxy S

Thank you! The article I was reading with reference pictures did not show the box so I was a little confused about it. I really appreciate your time (and others that help out on this forum).

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   Yes, the 1979-S proof half dollar features the "Type 1" "S" mintmark from a worn punch that had been used for many years. The depression around the mintmark that I assume you are referring to as a "box" was created by metal on the die being displaced by the punch and raised on the die so that it appears as a depression on the coin. 

   Check each coin in the set, as some 1979 proof sets had "Type 1" mintmarks on some coins and "Type 2" mintmarks on others.  

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On 1/30/2024 at 10:21 AM, Epic Waffle said:

image.thumb.jpeg.fe64a13c26cd1cf528c09f07fec35a09.jpegimage.thumb.jpeg.2f3a9f06388e94ac82ed00a83ebb188d.jpegimage.thumb.jpeg.b0fb9f46529229bfa249e6d15ef77bdf.jpeg

What does your holder look like? On my set the Kennady is in the center. Nope I had to go take a look it was the SBA took the place of the Ike and it was goofy looking.

Edited by J P M
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