Whitman Expo
Following a thrilling multi-day showcase, Stack's Bowers and Ponterio is pleased to report the spectacular results of their October 2026 Hong Kong (SAR) Showcase Auction, which concluded on October 26, 2026.
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Catalog Information
GSID:
396496
Fineness:
0.999
Weight (gr):
31.3 gr
Weight (oz):
1 oz
Precious Metal Weight:
1 oz
Strike Type:
Proof
Diameter:
38
Coin Shape:
Round
Edge:
Fine Reeding
Variety:
U.S. Constitution
Variety 2:
200th Anniversary
Coin Date:
1987
Denomination:
1 Onza
Designation:
PR
Mint Location:
La Casa de Moneda
Coinage Type:
Mexican Coinage
Composition:
Silver
PCGS #:
385892
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Subject: I would like to contribute catalog info to CDN for 1987 1 Onza U.S. Constitution, 200th Anniversary PR DCAM
Body: Referring page: http://www.greysheet.com/prices/item/1987-silver-onza-united-states-constitution-mexico-world-coins-proof/gsid/396496 GSID: 396496 Title: 1987 1 Onza U.S. Constitution, 200th Anniversary PR DCAM
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Pricing Data Not Yet Available
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Request Pricing1993-Mo New 1P Silver Commemorative MS
1993-Mo New 1P Silver Commemorative PR DCAM
1993-Mo New 1P Silver Commemorative MS
1993-Mo New 1P Silver Commemorative PR DCAM
1994-Mo New 1P Silver Commemorative MS
1994-Mo New 1P Silver Commemorative PR DCAM
1996-Mo 1P Silver Commemorative MS
1996-Mo 1P Silver Commemorative PR DCAM
1997-Mo 1P Silver Commemorative MS
1997-Mo 1P Silver Commemorative PR DCAM
1998-Mo 1P Silver Commemorative MS
1998-Mo 1P Silver Commemorative PR DCAM
1998-Mo 1P Silver Commemorative MS
1998-Mo 1P Silver Commemorative PR DCAM
1998-Mo 1P Silver Commemorative MS
Greysheet News
Stack's Bowers and Ponterio's October 2026 Hong Kong (SAR) Auction Realizes Nearly $32 Million, Highlighted by a $4.75 Million Kwan Ping Trade Coinage Pattern
11/3/2026
Weekly World Mint Coinage: October 29, 2026
New coins from Australia, China, and the Netherlands.
10/29/2026
Weekly World Mint Coinage: October 22, 2026
New coins from the Falkland Islands, Gibraltar, and Malta.
10/22/2026
Events
Heritage Auctions: US Currency Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World Paper Money Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World & Ancient Coins ANA Signature Auction & Platinum Session
Location: Heritage Auctions
Tuesday, September 1, 2026