1830

The 1830 quarter eagle reports a Mint delivery of 4,540 pieces and is the second year of the Reduced Diameter sub-type that William Kneass introduced when production resumed at Philadelphia in 1829. Kneass had retooled the Capped Head Left portrait that John Reich originally modified in 1821, shrinking the planchet from 18.5 to 18.2 millimeters and pairing the smaller flan with new close-collar press technology that produced raised, perfectly uniform reeding rather than the older open-collar finish. The 1830 therefore carries the same weight and fineness as the Large Diameter pieces from earlier in the decade but presents on a slightly smaller, technically sharper planchet. Original output was absorbed by the same combination of bullion export, financial reserve use, and limited circulation that had characterized quarter eagle production since the resumption of striking in 1821.

Authentication for the 1830 quarter eagle begins with three measurable specifications. A genuine piece weighs 4.37 grams in 0.9167 fine gold and measures 18.2 millimeters across with a reeded edge and an up-down coin alignment. The diameter is the single most useful diagnostic on the issue and separates a Reduced Diameter year from any Large Diameter survivor at 18.5 millimeters under the same calipers. Cast counterfeits remain the historic threat for pre-1834 quarter eagles and tend to betray themselves through soft rim definition, pebbled or grainy fields where original mint luster should sit, and a faint parting seam visible at the edge under five to ten power magnification. Genuine close-collar reeding sits raised, sharp, and perfectly uniform around the circumference, a finish no casting can reproduce cleanly.

For modern collectors, the 1830 quarter eagle is one of the more available dates within an inherently scarce sub-type. Population data from PCGS and NGC together suggests roughly one to two hundred surviving examples across all grades, with most certified pieces falling in the Very Fine through About Uncirculated range and Mint State survivors genuinely scarce when offered with original surfaces. Demand draws from date collectors building the short Capped Head Left run and from sub-type specialists seeking a clean representative of the 1829 to 1834 Reduced Diameter format. Certified examples are the safer purchase given the counterfeit history attached to early gold. See the full Capped Bust Quarter Eagle series history.