Things You'll Need:
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Step 1
Remove the envelope's contents. Place them in a new envelope.
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Step 2
If the envelope is of a neutral color, fill a sink or basin with an inch (2.5 cm) of warm water and submerge the envelope.
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Step 3
Soak the envelope for 10 to 15 minutes. If the envelope is brightly colored, do not soak it--the color might run and ruin the stamp. Instead, hold it over a steaming kettle.
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Step 4
Pull the paper away from the stamp with your fingers. Remember, you want to preserve the stamp, not the paper.
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Step 5
Blot the stamp with paper towels.
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Step 6
Allow the stamp to air-dry for an hour, then use glue to affix it to the new envelope.
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Step 7
Or, if you plan to add it to your stamp collection, place the stamp between two pieces of cardboard and press it under a heavy book. If the stamp's back is still sticky, place the sticky side on a sheet of plastic. Allow the stamp to dry overnight.









