US # 300 (1902) 1c EFO Guide Line Cross with 4 Corner. 1/400 Scarce

With scarce guide line cross in upper left corner. EFO: Guide line cross. The horizontal & vertical guide lines cross in the upper left corner of the stamp. Note: These stamps were cut from a sheet of 400 stamps into individual sheets (panes) of 100 stamps. The guide line arrows were placed at the edge […]

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