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it is a genuine usage of two Scott No. J22 and four Scott No. J23 (two singles, vertical pair) tied on the back of a cover from Panama with PAQUEBOT (N.Y. 20 Div.) and COLLECT POSTAGE 10 CENTS straight line markings, one stamp (J22) with a natural straight edge and corner crease.
it is a genuine unused, o.g., never hinged, pane of 50, position 19 with natural gum skips the pane with perf separations, a portion of the sheet shown below.