A date that is often found with blue and rose toning, here is an exceptionally clean envelope-toned example. In the progression of toning colors caused by the thin-film interference effect produced by the toning layer, the initial toning colors are light gold, medium gold, amber, russet, burgundy, cobalt blue, and pale cyan blue. Coins in the burgundy-to-blue portion of the progression exhibit the colors seen here. Ex Heritage, Long Beach Signature Sale (6/3/05:6747).
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