2018-S Voyageurs, Silver Proof

Patricia Lucas-Morris's Voyageurs reverse for the 2018-S Silver Proof renders the painted-rock pictograph site at Lake Namakan in northern Minnesota, with two figures in a canoe passing beneath the rock face that preserves Ojibwe rock art older than European contact. Voyageurs National Park traces its name to the French-Canadian fur trade routes that crossed the lakes country between Lake Superior and the Canadian Shield interior in the 18th century. San Francisco struck 451,510 pieces for the 2018 Silver Proof Set, the figure matching the year's Silver Proof Set sales total and the lowest annual silver-set print run since 2014. The composition is the 90% silver, 10% copper alloy at 6.25 grams with .1808 troy ounces of pure silver, and 2018 marks the final year of the 90%-silver specification before the Mint converted all silver proofs to .999 fine silver beginning in 2019. The issue is the third of five 2018 silver releases and the 43rd of the 56-design ATB program.

Authentication on the issue starts with weight. The 6.25-gram silver planchet against the 5.67-gram clad sister gives a calibrated scale a half-gram spread to resolve, the cleanest non-destructive separation. The reeded edge reads silver around the perimeter without the reddish copper-core line a clad strike shows at an angle. PCGS, the Professional Coin Grading Service, and NGC, the Numismatic Guaranty Company, label the slab insert with Silver or the S/Ag abbreviation alongside the proof designation, where Cameo (CAM) is moderate frosted-device contrast and Deep Cameo (DCAM) the higher tier that is the standard outcome on the issue. The 2018-S Voyageurs Silver Reverse Proof, distributed in the dedicated 2018 Silver Reverse Proof Set, is a separate catalog entry with mirrored devices against frosted fields (the inverse of the standard proof finish) and should not be conflated with the standard silver proof here. Strike diagnostics sit at the canoe-figure relief, the pictograph detail on the rock face, and the water texture beneath the hull.

The collector market positions the issue as a 2018 Silver Proof Set component priced against the silver-spot floor plus a slab fee, with the closing-90%-silver status adding a transition-year framing that the 2017 and earlier silver issues do not carry. PR69-DCAM examples in PCGS or NGC holders move at a modest premium over the bullion value of the 0.1808 ounce silver content, and PR70-DCAM examples sit a tier higher with registry-set buyers driving the spread. The Native American rock art subject draws cultural-history and Minnesota state-coinage buyers as a secondary cohort beyond the Silver Proof Set assembly market. The 451,510 silver print run sits below the 2010-2017 silver-set average. For the broader story of the ATB Silver Proof program and the series' production arc, see the Washington ATB series history.