This is a Cricketeer by Hamburgers and Mullins Sport Coat.
The size is not in it but it appears to be a 44 regular.  Across the back from pit to pit is 52".
Sleeves have 4 buttons and the front is two button.  
Fabric is camel hair with a fine herringbone.
The condition is very good but the buttons and inside lining show wear.
A great vintage sport coat!