Letter sheet

A used 1840 hand-coloured 1d Mulready stationery envelope mailed to London

An 1886 2¢ Grant letter sheet uprated by 2¢ and used to Germany, 1888. Note how the letter and flaps were folded for mailing. This example has the side flaps left since they did not get torn off upon opening.

In philatelic terminology a letter sheet, often written lettersheet, is an item of postal stationery issued by a postal authority. It is a sheet of paper that can be folded, usually sealed (most often with sealing wax in the 18th and 19th centuries), and mailed without the use of an envelope. Letter sheets derive from the form in which written correspondence was made up before the mid-19th century — letters were written on one or more sheets of paper that were folded and sealed in such a way that the address could be written on the outside.

单词	Letter sheet
释义	Letter sheet 英语百科 Letter sheet In philatelic terminology a letter sheet, often written lettersheet, is an item of postal stationery issued by a postal authority. It is a sheet of paper that can be folded, usually sealed (most often with sealing wax in the 18th and 19th centuries), and mailed without the use of an envelope. Letter sheets derive from the form in which written correspondence was made up before the mid-19th century — letters were written on one or more sheets of paper that were folded and sealed in such a way that the address could be written on the outside.
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