90c Blue (39). Block of six, unused (no gum), s.e. at left, deep rich color and proof-like impression, far nicer centering than normally seen

EXTREMELY FINE. A RARE AND BEAUTIFUL UNUSED BLOCK OF SIX OF THE 1860 90-CENT ISSUE.

The 90c stamp was issued in 1860, along with the 24c and 30c values, all of which were needed to prepay high international letter rates established by various postal treaties. When supplies of current postage stamps were declared invalid in the South and ultimately demonetized by the Federal government, the 90c had been in use for only one year. Most unused multiples probably come from supplies recovered from Southern post offices.

Since the breakup of the Caspary block of 21, the largest recorded multiple is a block of nine (three known).

Scott Retail as original-gum block of four and pair $81,250.00.

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