The Otto Gas Engine Works
Advertising cover with facsimile stamps and facsimile Philadelphia circular date stamp cancellattions, 1902 and 1903
The Otto Gas Engine Works
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A place for show-and-tell, wondering aloud, and wandering the trails of curiosity . . . Comments, corrrections, additional information, fresh insights, other interpretations, more images, or related observations will be welcomed!
Advertising cover with facsimile stamps and facsimile Philadelphia circular date stamp cancellattions, 1902 and 1903