Vintage 1970s ? Plaid Blazer Green Blue White Size 40R No Sz Tag Benchleigh

Vintage 1970s ? Plaid Blazer Green Blue White Size 40R No Sz Tag Benchleigh Good used condition. Minor signs of wear. Pit to pit 21” Waist at top button 21” Sleeves 24.5” Shoulder to Shoulder 18” Bottom collar to hem 30” When there’s no size tag, the correct way to measure is pit to pit x 2, then minus 2. I believe it’s polyester or a poly blend, but there’s no material tag. 2 front pockets, 2 inside pockets, 1 left chest pocket. Double vented back.