Vintage Carhartt USA Union Made Overalls Bib Double Knee Duck Canvas
No indication of the style name/number
Insulated double knee overalls
Triple stitched seam at the seat
Left-leg hammer loop 
Reinforced Utility Pockets Handy for Work 
Large back pockets are reinforced for durability
Multi-tool and utility pockets for all your work accessories
Size 40x30
Approximate measurements: 
   Waist: 21" 
   Inseam: 28.5" 
   Rise: 13.5" 
   Leg Opening: 10.5" 

Fade, wear and stains throughout. Zippers are all functional, wear on hemline has a bit of fray. One tiny hole to the left ankle. No fabric thinning.
Smoke free, pet friendly home
*All used clothing items have been cleaned/laundered to standards