Quirky Term for the Speed of Posted Letters

This page is the CodyCross answer for the clue below from Art Museum, Group 722, Puzzle 3 (Private Collection).

Question is: Quirky Term for the Speed of Posted Letters

and the answer is: SNAILMAIL

Word Meaning:

SNAIL MAIL — (retronym) Mail (physical material) sent in the post, especially as compared with email.

Definitions from Wiktionary.

Quirky Term For The Speed Of Posted Letters - Art Museum CodyCross Answers | CodyCross Solutions