Bronco authentic western vintage men’s pearl snap shirt

Very thin material. Top snap has a bit of material loss as pictured in the last photo - hidden when snapped. At neck there is a button the snap in question is the first one below that. Button down pockets size reads large 16 to 16 1/2 measures. 23“ pit to pit x 30“ in length. As with older clothes, probably a small large by today’s standards.