Penny Black print run was 286,700 sheets, containing a total of 68,808,000 stamps. Many were saved, and in used condition they remain readily available to stamp collectors. The only known complete sheets of the Penny Black are owned by the British Postal Museum. In addition to the general issue of the Penny Black, a similar stamp intended for official mail was produced, with the letters "V" and "R" replacing the crosses in the top corners. Because the general public quickly accepted the postage stamps and ridiculed the Mulready stationery produced at the same time, vast supplies of Mulready letter sheets were given
Penny Red about 21 billion Penny Reds were printed by Messrs. Perkins, Bacon & Co. Initially, the stamp had no perforations, and had to be cut from the sheet using scissors in the same manner as for the Penny Black and the early printings of the Two pence blue. Perforations, (experimental gauge 16), first came into use in 1850 and were officially adopted in 1854 (in the same size as the experimental issue). The experimental issue can be distinguished from the general issue as the later was applied to stamp which used a different alphabet type for the letters in the lower