Enter a clue or pattern or both:
The Clue
Abbr. at the bottom of a business letter (3 letter answer)
The Answer
ENC
Tags
Notes
The answer ENC is seen frequently, appearing about once every 140 puzzles.
Related Clues
Abbr. with a check
Abbr. on an envelope
Env. extra
Env. insertion
Env. stuffer
Fenced in: Abbr.
Letter abbr.
Ltr. insert
Ref. book
Ref. work
Reference bk.
S.A.S.E., e.g.
SASE, e.g.
A set of bks.
Steno's abbr.
Abbr. at the bottom of a letter
Abbr. in a business letter
Bottom-of-letter abbr.
Business letter abbr.
Business-letter abbr.
Collier's work: Abbr.
Cover-letter letters
Direct mail abbr.
Letter accompanier: Abbr.
Volume purchase?: Abbr.
Stamped return env., e.g.