Old Stock BBGF suit in 44
Awesome looking suit!
It looks as though it had removable buttons, as the photos show that where the buttons would normally be on the sleeves and body, there are a series of circular holes with edge stitching, where buttons could be inserted. The holes appear very similar to those used for studs on a dinner shirt. I guess that it was originally made like that so that the owner could swap over sets of buttons - gold or brass ones for one occasions, horn buttons for another occasion and so on.