Plate number preceded by “PL.” Used on many Documentary, Proprietary, and Cordials, Wines, etc. Plated of the 1914 issue.

Similar to Imprint R6, except tablet has rounded ends and on a line above the is “PRINTED BY THE” in color.
Used by both the National and American Bank Note Companies on some private die revenue stamps.

“American Bank Note Co. New York” in white on a rectangular colored tablet, followed or preceded by “No.” and plate number. Used on some private die revenue stamps.

“PRINTED AT THE BUREAU ENGRAVING & PRINTING” Used o plates made by the Bureau for late printings of #R152 and #RB11 – #RB19

“General Prop, No. #” or similar imprint in mirror image script. Added by the Bureau to plates having Imprint 4