Related Clues:
- Abbr. at the bottom of a letter
- Postal letters?
- Envelope abbr.
- Env. extra
- Abbr. on an envelope
- Abbr. in a business letter
- Env. stuffer
- A check, one might hope: Abbr.
- Multi-vol. set
- Abbr. at the bottom of a business letter
- Direct mail abbr.
- S.A.S.E., e.g.
- Went around
- Env. contents
- Business letter abbr.