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Scott Number: RB12a Collection Reference No. for Communications: 4395
Denomination/Type: Proprietary: 2c brown, silk paper
2023 Scott Catalog Value (for a single stamp): $ 3.25
Estimated Retail Value: $ 400.00 What is this?
Cancel Method: Manuscript
Cancel Date: October 25, 1877
Cancel or Company Type: Unknown
Doubly scarce: an illegal use of a proprietary stamp as postage on a foreign exchange document, along with German revenue stamps affixed to the reverse. Combination usages of U.S. and non-U.S. revenue stamps on the same document from this era are exceptionally rare.
If you have any information or comments about this cancel or stamp, please email me.