Where does the plate number go on a stamp?
American stamps used a two-row system (block of four) to denote printing information that included the plate number (s) until the late 1960s. Some stamps had the plate block number printed in the middle of the top row of a pane, thus requiring six stamps instead of four to complete the block.
When did they start engraving plates on stamps?
Plate blocks are called cylinder blocks by United Kingdom stamp collectors. British stamps also contained a control letter in the salvage of a stamp pane between February 1884 and 1947. The United Bureau of Printing and Engraving began engraving plates and printing some United States postal stamps in 1894.
When was the first perforated line engraved stamp issued?
The first government perforated line engraved British stamps, shown above, were issued during 1854 and 1855 . These stamps were perforated 16, and they were printed on various degrees of bluish paper that had WMK 18 — the Small Crown watermark. Plate 4 and Plate 5 of the 2 P. plates have different check letter alphabet types.
How many stamps are in a plate block?
The number of stamps in the block varies depending on the number of digits used. The minimum is four. Plate numbers allow postal services to maintain quality control during the printing process.
The first government perforated line engraved British stamps, shown above, were issued during 1854 and 1855 . These stamps were perforated 16, and they were printed on various degrees of bluish paper that had WMK 18 — the Small Crown watermark. Plate 4 and Plate 5 of the 2 P. plates have different check letter alphabet types.
Where are the plate numbers on a British stamp?
The plate numbers, on each of the following British stamps, are located in the lattice work on either side of the vignette. This can be of tremendous help, when trying to locate varieties that occur on particular plates.
What are the numbers on 77 plate stamps?
On the 77 plate stamps I could see 77 written on both sides in the swirlly bits. I’ve blown this up and couldn’t see any numbers. Is plating UK stamps complicated, and do you need a lot of expensive/rare plating books?
How to plate GB QV 1d red imperforate stamps?
The difficult ones are where lots of the same lettering have been removed from the imprimatur sheets. So the A rows are hard, but much worse than that tends to be stamps lettered IG to IL and JG to JL from the plates after about 110. Re: How to plate GB QV 1d red Imperfs? Thanks very much for the reply but how do you plate them?
