1882-O O/S Strong

The 1882-O O/S Strong is the famous over-mintmark variety where an O mintmark was punched over an existing S mintmark on dies originally prepared for San Francisco that were redirected to New Orleans. The variety belongs to the same 6,090,000-piece 1882-O mintage and is catalogued by the Van Allen-Mallis attribution system as one of several VAM listings tracking the strength of the underlying S. The Strong designation refers to the clearest visible underlying S, with weaker variants tracked under separate VAM numbers. The over-mintmark sits among the most popular over-mintmark varieties across the entire Morgan series alongside the 1900-O O/CC.

Authentication of an O/S Strong claim relies on examination of the mintmark under five to ten power magnification. The underlying S protrudes through the O, visible as a remnant curl below or around the O's central opening. The strongest VAM examples show clear S elements both above and below the O; weaker variants show partial remnants. PCGS, the Professional Coin Grading Service, and NGC attribute the Strong, Medium, and Weak variants in their slabs, with the Strong commanding the highest premiums in the variety market. Counterfeit over-mintmarks exist; certified slabs are the standard purchase route at meaningful price levels.

The 1882-O O/S Strong is a popular series Variety pickup and one of the most-recognized over-mintmark varieties in U.S. coinage outside the 1900-O O/CC and 1942/41 Mercury dimes. Pricing trades at a substantial multiple of the standard 1882-O across all Mint State grades, with the gap widest at MS65 and above. Most certified examples grade MS62 to MS64; MS65 and above is genuinely scarce. Certified slabs from PCGS or NGC with the VAM attribution noted on the holder are the standard purchase route at any meaningful price level, since variety counterfeits and misattributions both circulate in the raw market. The Van Allen-Mallis attribution system catalogues every documented Morgan die marriage, and the Top 100 Morgan VAM register identifies the most-collected varieties for specialist collectors. For the broader over-mintmark variety context across the Morgan series, see the Morgan Dollar series history.