VERY FINE. A RARE USED EXAMPLE OF THE 6-CENT 1895 "USIR" WATERMARK ERROR. ONLY 26 ARE KNOWN TO US.
The "USIR" (United States Internal Revenue) watermark error occurred when a supply of paper reserved for revenue stamp production was used for printing the 6c and 8c postage stamps. Our updated census of this issue records less than 30 used copies certified as genuine by the Philatelic Foundation, plus two uncertified copies.
With 1994 and 2010 P.F. certificates
VERY FINE AND CHOICE USED COMBINATION PAIR OF THE 1895 $1.00 WATERMARKED BUREAU ISSUE.
The $1.00 1894-95 Bureau Issue was printed in plates of 200 subjects. The plate consisted of fifteen vertical rows of Type I and five vertical rows of Type II, which accounts for the scarcity of Type II compared with Type I. There are only ten positions on the plate which yield combination pairs. It is considerably scarcer in used condition.
With 2010 P.S.E. certificate