(RCSD) Chalk surface paper
On Sep 9, 9:55 am, "news.knology.net" wrote:
How can you tell if a stamp is chalk surfaced or not?
Chalky paper, used especially on British stamps, is easy to identify.
Chalk-surfaced stamps when rubbed with silver will leave a black mark
on
them. Be careful when testing these and just touch a small corner or
part
of the stamp.
You can sort out some of the modern ordinary & chalky paper stamp
issues with an Ultra-Violet lamp.
Blair
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