Things to keep in mind:
1. Size & content of the material
2. How it is to be mailed
3. How the postage is to be paid
4. Is a reply needed?
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Processed Letters Bond, White wove,
and Circulars Colored Wove, Manila,
Commercial and Official
Booklets Booklet Envelopes, Clasp,
String and Button, Open Ends
(regular or self seal)
Catalogs Clasp, String and Button,
Open Ends (regular or self seal)
Magazines Booklet Envelopes,
Open Ends
Reply Colored Wove, Commercial
Envelopes and Official
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