1858

The 1858 Seated Liberty half dollar is a high-mintage Type 4 No Motto issue that captures Philadelphia's return to full silver production after the previous year's financial shock. With 4,226,000 pieces delivered, the date more than doubled the 1857 output and stands as one of the larger half dollar mintages of the decade. Demand for fractional silver rebuilt quickly once bank-suspension fears eased in the spring of 1858, and the redemption of foreign silver coin authorized by the Mint Act of 1857 continued to feed bullion to the Philadelphia coiner through the year. The 1858 calendar also marks a quiet milestone for collectors: this was the first year the Mint began selling proof coinage to the general public on a regular basis, rather than supplying it only to dignitaries. Roughly 210 proof half dollars were struck under that new arrangement, a separate issue from the circulation strike described here, but a reminder that 1858 was the year an organized collector market for current-year coins first found a Mint counter.

Strike quality on circulation 1858 Philadelphia halves is generally good, with Liberty's head and shield ruling lines well rendered on properly struck examples and the eagle's claw definition holding up across most die pairs. Softness, when present, gathers in the upper-left obverse stars and the eagle's neck feathers on coins from later die states. Grade distribution runs heavily through Very Fine and Extremely Fine, with About Uncirculated coins readily available and Mint State examples present in respectable numbers through MS63; original-luster gems at MS65 and finer become scarce and command a clear condition premium. Wiley-Bugert documents a substantial number of working die marriages for the year, reflecting the heavy production schedule, with date position relative to the rock and lowest curl, the slope of the digits, and the placement of reverse die cracks and shield-line clashes serving as the standard attribution markers. Authentication is straightforward: 1858 obverse with no mintmark, plain field above the eagle, no motto across the upper reverse, weight at 12.44 grams on an unworn planchet, and even square reeds on the edge place the coin firmly in the 1856–1866 Type 4 window.

For full context on subtype boundaries, weight standards, and the start of regular proof sales, see the Seated Liberty Half Dollar series history.