The class I took in 1970 was good for my carry in NY, and in FL, although I did have an instructor come to the house and he did the picture filled out the paperwork and printed me, way back in the early 90's. Two states and 1 NRA hunter safety course. I remember I paid for the first guy to come to my business, and certify about 6 of us for our hunting licenses, back when I hunted.
Now a days they don't allow that stuff I would imagine, the guy I used in FL, was called, "Have gun will travel" and was a one stop shop, he even sold me a gun when he was done, all for about 50 bucks, "back then, 20+ years ago, plus the cost of a 45 caliber AMT backup.