Smoke in the Box

I found a stack of vintage Jack in the Box ashtrays at an estate sale about a month ago.  I'm not a smoker, nor have I ever been a big fan of Jack in the Box, but vintage fast food items are of interest to me and I recall similar stamped foil trays being in other fast food restaurants I did frequent.  I believe I paid 50 cents for all of them.

I believe this logo dates these trays from the late to the early '70's.