10c Orange, Panama-Pacific (400A). Right plate no. 6135 block of six, not hinged but some perf reinforcement between first and second rows knocks it out of the Mint N.H. category, brilliant color, attractive margins and centering, tiny natural inclusion below plate no.

VERY FINE. AN EXTREMELY RARE PLATE BLOCK OF THE 10-CENT ORANGE PERF 12 PANAMA-PACIFIC ISSUE.

This is one of the rarest 20th Century commemorative plate blocks.

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