Revenues used as postage, 1898-1930's, mostly 1898 Overprint Issues and 1917-28 Documentary revenues, 37 covers, one wrapper and two fronts, also a few on piece, nearly all accepted as fully prepaid, but incl. some with postage dues or additional postage frankings, usual very mixed condition, some have faults or are faulty, otherwise very good-very fine lot est.