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The Boy Mechanic, Book 2

Part 3 — A Stamp Moistener

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A handy stamp moistener and envelope sealer can be made by procuring a small medicine bottle or glass vial and inserting a piece of felt or other wicking material in the place of the stopper, and filling it with water.

This moistener will be found handy for a small office where the mail is quite heavy, but not big enough to warrant the purchasing of a sealing machine. This moistener is sanitary and replaces the wet sponge.—Contributed by Theo. J. Becker, Kansas City, Mo.

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