1906 Proof Liberty Head Gold $2.5 Quarter Eagle (Coronet Head)

An estimated 160 proof quarter eagles were struck in 1906. The Denver Mint began operations that year, though Denver would not produce quarter eagles until the Indian Head design appeared. Surviving proofs are moderately available. The 1906 proof is the penultimate proof issue of the Coronet Head quarter eagle. The proof surfaces show the design in its most carefully prepared form, with mirrored fields contrasting against frosted devices. Each proof was individually struck at the Philadelphia Mint, using polished dies and multiple slow-speed impressions to achieve full detail. Certification by PCGS or NGC confirms the proof designation and protects against confusion with well-preserved business strikes.