Vintage Brooks Brothers 100% wool navy blazer. Approx size is 42Regular. 70s-80s

Vintage 70’s -80’s Brooks Brothers 100% wool navy blazer. Made in USA. Gold buttons. Approximate size is a 42Regular. No tag of size My husband wears a 44Long and it was a bit short in the sleeves and tight across the back. Below are some measurements I took. 24.5” sleeve length 22.75” Pit to Pit 31” shoulder to bottom hem