Vintage Ralph Lauren Chaps Tan Sports Suit Jacket Blazer 42 Short Union Made

Vintage Chaps light brown Suit Jacket.  Jacket is Union made in USA.   Jacket is in excellent vintage condition looks almost new but there is and age spot on the lining at the back bottom and on the front right side by the bottom button.  Please see photos for details.  No size or material tags, feels like it is a linen blend?  Chest is 42 inches Length is 29 inches Sleeve is 23.5 inches Measurements are consistent with a size 42S