Vintage 1960s USA Mackinaw Jacket
By L L Bean. 
(3)
Vintage mackinaw jacket, fashioned in check wool.
It features button front fastenings, collar, chest and hip pockets.
This jacket is in good condition.
Measurements
 
I would estimate this jacket to best fit a Men’s S, depending on required fit but please look at measurements below: 
Pit to pit 19”
Length 26”
Sleeve 23”
Shoulder to Shoulder 17”