I dug this I believe Aluminum advertising piece today at a new permission. I thought I would post and see if anyone knew for sure what it is. Thanks for helping!!!
You put a quarter in, Turn the Dial to a Letter,
Then Pull the Handle Like a Slot Machine, to stamp the letter in.
Then Repeat Until You
Spell Out what You want.
If You can Find out Who Crawford Mchear MD Is/Was,
You can Probably Date it. As he probably Created it, Shortly After Gratuation
From Medical School.
most likely 60's/70's. this is the era
the machines started showing up at the local carnivals.