Related Clues:
- Mail-enclosure courtesy: Abbr.
- Encl. with a sweepstakes entry
- Courteous enclosure: abbr.
- Ed.'s convenience
- Letters on oil cans
- Response facilitator: Abbr
- Freelancer's enc
- Automotive engineers' org
- Ready-to-mail item (Abbr.)
- Bill accompanier: Abbr
- Letter encl. to facilitate a reply
- Letters on oilcans
- R.S.V.P. facilitator: Abbr
- Manuscript encl
- Encl. with an autograph request