BabelNet

bn:03783772n

Noun Concept

SYL

No term available

In philatelic terminology a letter sheet, often written lettersheet, is a sheet of paper that can be folded, usually sealed, and mailed without the use of an envelope, or it can also be a similar item of postal stationery issued by a postal authority. Wikipedia

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IS A

第一種郵便物

PART OF

第一種郵便物