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Scott Number: R27c Collection Reference No. for Communications: 5237

Denomination/Type: 5c Inland Exchange, red, perforated

2025 Scott Catalog Value (for a single stamp): $ 0.60

Estimated Retail Value: $ 300.00 What is this?

Cancel Method: Undetermined

Cancel Date: June 19, 1876

Cancel or Company Type: Unknown

An 'ugly duckling' of a cover, but very scarce and important. A 5-cent Inland Exchange revenue used illegally as postage on a cover to England. This cover was highlighted in Labron Harris's September 2019 American Philatelist article 'Early U.P.U. Treatment of Invalid Postage' as the earliest use he had seen of 'Xs and Os' cover markings to indicate invalid postage.

If you have any information or comments about this cancel or stamp, please email me.