Related Clues:
- Scrabble tile, essentially
- Epistle, missive
- Buffalo Tom "Big Red ___ Day"
- Box Tops classic "The ___"
- Something sent to Santa
- Bygone point-to-point communication
- A or B?
- Obsolete means of communication
- Communication from landlord
- Email ancestor
- E.g. a landlord?
- Western Union introduction of 1958
- One giving permission, I say?
- A to Z?
- Note what's leading for all sides today