Automat, 977 Eighth Avenue, Manhattan.
I found this photograph by Bernice Abbott (1898-1991) at the New York Public Library Digital Gallery, whose image database was “developed to provide free and open online access to thousands of images from the original and rare holdings of The Library”. You can even order prints.
In the late 80’s, I ate at the last Automat in Manhattan at 42nd and Third and by then it was tired. I like the more advanced technology of Kaiten-zushi (conveyor belt sushi) anyway. You don’t have to get up to retrieve your food – kinda like dim sum without people.