A 1907 Panama Canal Zone stamp has realised $7,670 at Kelleher Auctions.
 The 1907 stamp led a sale of Canal Zone issues |
The error headlined the Donald A Kuske Specialized Collection of Canal Zone: Stamps and Varieties, Postal History and Postal Stationery, which took place in Connecticut on September 9.
The auction house described the piece as "one of the great rarities of [the] Canal Zone. Plass records only 9 examples, all used and 'apparently defective'. This stamp would be one of the nicer examples."
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