1878 Trade Dollar. Proof-66 (PCGS).;The focal regions of this premium Gem are showcased in pewter-grey and pinkish tones, enveloped in a deep iridescence of violet, sea green, and midnight blue in the fields. The contrast is considerable between the frosty luster of the devices and the watery reflectivity that surrounds, both remaining entirely undisturbed by interruptions of any sort. A trifle softness is apparent to the very most prominent elements on each side, though the balance of the motifs are left sharp and boldly rendered. This piece delivers a dynamic and alluring complexion that only grows in beauty with continued examination.<p>The only Trade dollars to emerge from the Philadelphia Mint in 1878 were Proof examples struck solely for collectors, though coins intended for commerce were still struck in the mints of Carson City and San Francisco. Of the 900 Proof specimens minted in 1878, just 683 were initially sold, leaving 219 examples to be distributed in 1879 for bullion or possibly even face value and, as a result, and many impaired Proofs are known today. While this issue has survived in great numbers, the vast majority of these examples are confined to grades of Proof-64 and below, riddled by minor infractions like hairlines and trivial blemishes. Superlative Gem examples like the present piece are truly exceptional, as PCGS has graded just 6 coins finer within all designations combined.