1986-S Proof

San Francisco delivered 3,010,497 proof Roosevelt dimes in 1986 for inclusion in the annual proof set, a figure that fell almost 30 percent below the 1985-S total and reflected softer collector demand at the proof-set price point that year. The drop placed the 1986-S among the lower-mintage regular S-mint proofs of the decade, though survival of proof-set material is essentially complete and the production figure has not translated into meaningful relative scarcity at standard certified grades. The S mintmark sat sharp above the date, dies were hand-polished to mirror finish, and the cupronickel-clad planchet was struck at higher pressure on a slower press to produce the squared rims and frosted devices that define proof finish from business strike.

Authentication of a 1986-S proof rests on the same finish diagnostics that distinguish any modern San Francisco proof from a business strike: deeply mirrored fields under a 10x loupe, sharp ninety-degree rim profile rather than the rounded business-strike meeting of field and rim, and frosted devices on the well-cared-for examples that earn the Cameo and Deep Cameo designations from PCGS and NGC. Cameo, the contrast between mirrored fields and frosted relief, and Deep Cameo, the same effect at heavier frost depth, carry the price premium at the PR69 and PR70 tier. Die-polish lines visible at angle under magnification confirm proof finish, and the S mintmark must show sharp serifs and clean fields around the punch. The 1986-S strike quality is good across most dies; Cameo and Deep Cameo certification rates are reasonable, and PR70 DCAM examples remain achievable rather than rare.

The 1986-S sits in the routine tier of late-1980s regular proof issues, with PR69 DCAM examples available at modest price levels and PR70 DCAM forming the meaningful condition-rarity step. Most surviving examples remain in original Mint proof packaging, and submission economics keep raw market supply thin. The price ladder is flat through PR69 and accelerates at PR70 DCAM where PCGS and NGC population reports support a genuine premium for registry-set competition. The 1986-S is a routine entry in any modern proof-Roosevelt date set and shows no fundamental scarcity outside the top-grade tier. For background on the San Francisco proof program through the late 1980s, see the Roosevelt Dime series history.