Classic dark blue jacket made by heritage manufacturer Adolphe Lafont. M/L size, 23" pit to pit, marked French size 48. 
Three patch pockets with reinforced stitching, one inner pocket. Five front buttons.
Nicely worn condition. Most likely late 1970s/early 1980s, but based on an unchanged pattern used by Lafont for decades, with a round collar typical of Lafont, this makes it look like it could be a 1960s pieces (and these are often mis-dated online, but you can tell the era through the logo).
Made in the Lyon area and 100% workwear cotton twill.