A Voyager’s Photo Souvenir Note Sent in the Mail

Puzzle 20 of Flat Things Easy Pack

Question is: A Voyager’s Photo Souvenir Note Sent in the Mail

and the answer is: POSTCARD

Word Meaning:

POSTCARD — (postal) A rectangular piece of thick paper or thin cardboard, typically used for sending messages by mail without the need for an envelope.

Definitions from Wiktionary.

A voyager's photo souvenir note sent in the mail Flat Things Answers | CodyCross Solutions