Global Priority Mail (GPM): A category of international mail that provides fast service at attractive rates to 27 countries.
Grill: A pattern of small, square pyramids in parallel rows impressed or embossed on the stamp to break paper fibers, allowing cancellation ink to soak in and preventing washing and reuse.
Gum: The coating of glue on the back of an unused stamp.
Gutter
The narrow space between stamps in the sheet permitting perforation. [see Perforation]
Gutter Margin
The blank margins dividing a sheet of stamps into panes.
1 comment:
You are doing a great job of getting kids interested in stamp collecting and making learning fun.
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