I photographed these M100 Cargo Trailers at the Tillamook Air Museum, Dubois at the Western Antique Aeroplane and Automobile Museum (WAAAM) in Hood River, Oregon.
These are 1/4-ton trailers, less robust than the larger 1 1/2-ton M105 Cargo Trailer. The M100 also is very similar to the 1/4-ton Bantam T3 trailer.
M100 Cargo Trailer
Tillamook Air Museum 2021
M100 Cargo Trailer
NMMV Dubois 2021
Dunbar Kapple M-100 Trailer
WAAAM, Hood River 2021
WAAAM, Hood River 2023
M100 Cargo Trailer
I am IDing this as an M100 due to the lack of a tailgate… though the M100 and the Bantam T3 trailers are very similar.