__ Board, Pegs-and-Hole Device for Navigation
Puzzle 6 of Fashion Throughout History Hard Pack
Question is: __ Board, Pegs-and-Hole Device for Navigation
and the answer is: TRAVERSE
Word Meaning:
TRAVERSE — (climbing) A route used in mountaineering, specifically rock climbing, in which the descent occurs by a different route than the ascent.
Definitions from Wiktionary.