Russian Empire 1866 10 Kopecks Brown and Blue

Russian Empire · 1866 · 10 kopecks

A 10 kopeck brown and blue stamp, likely featuring the Imperial Russian double-headed eagle, used on a folded letter from Suwalki to Warsaw.

This stamp reflects the Russian Empire's postal administration over its Polish territories in the mid-19th century, as evidenced by its use in Suwalki and Warsaw and the transition from Polish to Cyrillic cancels.