Not being nit-picky Handy, but that Gulf logo didn't come out until the 60's. I would date the shirt to late 60's or even the 70's. Still neat to collect the company clothing, I have some in my collection from Mobil and Sinclair. Darin
...the logo was introduced in late 1963 - but you're right: that shirt is from the late 60s - early 70s...
Looking for better Gulf items: signs, globes, cans and paper - especially porcelain Gulf flanges, and Gulf A-38 & A-62 ad glass...