VTG 60’s, 70’s Big Smith Snap Front Denim Work Shirt

Nicely worn in, sturdy, light blue denim. Two front flap pockets and side slits. Western style yoke stitching. No holes or stains other than wear around the collar and some elbow fading. No missing snaps. All snaps work except the right sleeve cuff snap has some rust. See photo. Measurements: pit to pit 24”, length from center back 30”, hips 23”, sleeves 23”