workwear

Hi! Got this jacket and I would like to know if the stamp has any purpose or use, or if the jacket is indeed 60s

Ok, so this is really confusing me. The print on the back of this looks new and strange as well as the tag inside but other things about it look old... the clasp at the collar, the redline inside.. does anyone have any insight or knowledge or ideas?! Thanks!

Happy New Year! Can anyone help me date this mens wool chin strap work shirt? Im not familiar with these and can't figure out if its the real deal or a repro... are they the correct seams? Appreciate any help! Thank you!