Quote Originally Posted by OC Richard View Post
Yes the fact that Mackie was making them makes me think that they must have had a military contract, if not with the UK perhaps with Canada.

There's tons of ex-army khaki RRS bonnets on Ebay but they're never big enough for me. Also the MOD bonnets have been getting smaller and smaller in diameter, and I don't care for that look.



Ironically the size of the TOS shrunk over the course of the 20th century while at the same time the size of the Glengarry grew. Usually in fashion men's military and civilian hats tend to grow or shrink together regardless of which sort of hat.
Check the label on the inside for a little Broad Arrow [=》] and perhaps the initials BO (Board of Ordinance)
That would identify it as British army and not Canadian.