Killer in philately refers to the cancellation. A killer cancellation is heavy and obliterates the images on the stamp, which can make it difficult to properly identify or enjoy. Some consider them strictly as space fillers in the album. The value is greatly reduced by such a cancel.
Nothing, I'm afraid that is a human term.
British Society of Russian Philately was created in 1936.
A person who studies and collects imprinted stamps. "pertaining to philately" philately = stamp collecting
Stamp collecting
the term is the "preppy" killer . anyway the preppy killer is Robert chambers and his G.F .
Philatelists collect stamps and postal history.
Philately
Nattily Philately Atalie
rowland hill
There is no specific term or concept known as "killer newtons." It could possibly be a misunderstanding or misspelling of a different term.
philately
NH means never hinged. It means the gum on the back has no hinge remnant and has never been mounted on an album page