Related Clues:
- Letter abbr
- Ltr.-bottom letters
- Armour of interlinked metal rings
- With 97-Across, like many catalogues
- Letters, catalogs, etc
- Letter distribution on a base
- "Junk" that goes third-class
- Lancelot's strong suit?
- 'You've got --'
- Postman on the phone
- Common delivery
- Some plane cargo
- Something besides the letter: Abbr
- A lot of it is first-class
- Irish boy returning to post