I dont remember horizontal models like this but I remember vertical ones that were more similar to modern dispensers. My parents bought a small motel in the palm springs area when I was 3 in 1976 and it had a vertical bottle dispenser like this. When we first moved in it was 15 cents a bottle and we had coke, 7up, tab, canada dry and maybe Dr pepper. You only had about 3 seconds to pull the bottle out while it made a hum noise. If you hesitated or were too slow, you lost your money. It went up to 25 cents by 1980, and then it was briefly 35 cents before it went to 50cents around 83 or 84. A coke was 50 cents pretty much everywhere at that point. The rooms also had magic fingers on all the beds -remember those?