This vintage jacket was made in the 1950s and was sold by Porter’s Frontier Fashions, with locations in Phoenix and Tucson. It is made of oatmeal tweed, in a classic western cut, with peak lapels, front and back scalloped western yokes, flapped, pleated, buttoned patch pockets, bi-swing shoulders and a breast pocket. The jacket bears a 1949 Amalgamated Clothing Workers of America union label, the particular variant dating it between 1949 and 1962. From the jacket’s details, I would put the dating in the mid 1950s.
Chest (pit to pit): 23″ (doubled = 46″)
Shoulder to shoulder: 19-1/2″
Sleeve (shoulder to cuff): 25-1/2″
Length (base of collar to hem): 31″