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首席收藏网 > 数据中心 > Stack's Bowers and Ponterio > SBP2022年8月#1/2/5/10-美国钱币

Lot:9557 Lot of (8) Experimental NGC Series 7 Slabs.

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世界钱币

USD 2000

SBP2022年8月#1/2/5/10-美国钱币

2022-08-23 00:00:00

2022-08-28 08:00:00

USD 0

SBP

预展

Lot of (8) Experimental NGC Series 7 Slabs. Included are: 1937 Mercury dime, missing grading label, Mint State; 1942-D Mercury dime, missing grading label, Mint State; 1956 Franklin half dollar, missing grading label, Mint State; 1963 Franklin half dollar, missing grading label, Proof; 1964 Kennedy half dollar, handwritten label, Mint State; (2) 1965 Kennedy half dollars, handwritten label, Mint State; and 1922 Peace silver dollar, missing grading label with handwritten sticker, Mint State. Also included in this lot is a standard NGC series 7 sample slab with an 1981-S Proof Roosevelt dime. (Total: 9 coins)<p>NGC confirms the experimental nature of the slabs and that the party who owned these was helping them in the development of new holders. The three Kennedy half dollars with handwritten labels are notable for having variations in the coating and/or dipping of the plastic with some type of protective substance and close inspection under a bright light does reveal a unique look between them. All three are dated 10/4/96. The Peace dollar is simply labeled "75 psi July 29, 1998" and is clearly a test of the pressure being used to seal the slab.<p>As a group, these are a fascinating window into the inner workings at NGC and these are the only examples any of our numismatists have ever seen or heard of. With unusual holders and rare sample slabs experiencing strong collector interest in recent years we expect stiff competition when these cross the block.