Beautiful vintage striped grey wool sport coat

1960s-70s Arthur's Court Sport Coat Angled stripes, suede elbows. In great condition aside from a few markings on the elbows. Satin lined Two inner breast pockets Unsure of the sizing, but I am 5'6" with very broad shoulders and it is too broad, arms too long for me. It was my uncle's, who is probably 5'9" and of medium heft