An original mid-century men’s wool three button undershirt, most likely dating from the 1940s and in a large size.
This style of undergarment was popular with men for many years before slowly being replaced in favour of more modern equivalents by the 1960s. This particular example could easily date from the 1930s to the 1950s. The style however remains unchanged with the three button front and wool material being identical to earlier examples.
The top is a good larger size which are now very hard to find. It measures at 21” pit to pit and 22 1/2” between the shoulder seams. I would suggest it would be a good fit on someone of around a 40-42” chest.
The condition of the shirt is good for its age but it does have signs of wear and age, as is to be excepted of an item of this age. There is also some wear under the left sleeve as shown in the pictures supplied. This could potentially be repaired without too much trouble.
All in all a decent example of a mid-century undershirt in a harder to find larger size.