Vintage 1920s -30s OAK Wood frame U.S. Navy Canvas Trapper Backpack - Military For Sale

Estate find unique oak frame cotton trapper / yucca rucksack - Leather , steel, cotton + wood.
Iconic design possibly U.S. Navy (steel hooks are stamped w/ navy anchor mark?) unknown origin.
Adjustable length straps. Zipper works.
Leather buckle. As sourced; unrestored condition. Some loose stitches. Patina. Surface wear around as expected.
Please ask questions.
*please note folding stool in pics is not included; listing is for backpack only
22”Long (Oak slats)
14”Wide (between slats)