0
Tagged refers to a method of marking a stamp so that automatic mail machines can work with a letter. Early trials included graphite lines on the back of stamps. Today, most stamps are tagged with a phosphorus ink that is transparent and printed over the stamp design. Ultraviolet lights can detect them and allow the envelopes to be oriented to enable automatic cancelling machines and sorting machines to do their work.
Wiki User
∙ 16y ago
Wiki User
∙ 14y ago
Tagging refers to the use of various phosphorus inks to allow the machines to orient envelopes for cancellation. It also set them up for the optical address readers. The use of a blacklight is necessary to see tagging. In some cases, the tagging can be seen without the light. Some put it in the ink, others print bars or blocks on top of the stamp design.
Wiki User
∙ 12y agoTagging is a phosphorus ink often applied to the stamps to allow automated machines to handle the mail. Mottled means that it is not an entire covering, but that the ink has blotched.
Add your answer:
Earn +20 pts
How is a tagged stamp noticed when collecting?
The simplest way is to expose the stamp to various wavelengths of ultraviolet light. They stamps will glow. Often the tagging can be seen with the eyes if the stamp is held at an angle to the light.
What is the simple predicate of this sentence One popular hobby is stamp collecting?
stamp collecting
What is litho in stamp collecting?
Litho in stamp collecting refers to the printing process called offset lithography.
What has the author Kenneth F Chapman written?
Kenneth F. Chapman has written: 'Good stamp collecting' -- subject(s): Collectors and collecting, Stamp collecting
What has the author Margaret I Morris written?
Margaret I. Morris has written: 'Thematic stamp collecting' -- subject(s): Stamp collecting
What has the author Walter Young written?
Walter Young has written: 'Stamp collecting, A to Z' -- subject(s): Stamp collecting
What does the word philately?
Stamp collecting
Why stamp collecting is so popular?
because stamp were easily obtained .
What has the author Edward H Spire written?
Edward H. Spire has written: 'Adventures in stamp collecting' -- subject(s): Stamp collecting
What has the author James Watson written?
James Watson has written: 'The Stanley Gibbons book of stamps and stamp collecting' -- subject(s): Postage stamps, Stamp collecting 'The Stanley Gibbons book of stampsand stamp collecting' -- subject(s): Collectors and collecting, Postage-stamps 'Your book of stamps' -- subject(s): Stamp collecting 'Modern 8mm cine-photography' -- subject(s): Amateurs' manuals, Cinematography
What hobies they do in Tanzania?
Mainly Stamp Collecting
What has the author David Lidman written?
David Lidman has written: 'The world of stamps and stamp collecting' -- subject(s): Postage stamps, Stamp collecting
