What can I say nothing special rare exquisite one of a kind I can keep going but if you know you know.. size marked is a 56 euro so US 46 but no way it would fit my guess is it’s like a 42/43R US as chest is 45 and that’s pretty standard on a suit jacket for a 42.. only thing I can say is their is very little wear on the bottom leather button.. please ask any questions you may have will send additional photos if needed