Looks very much like Holstens; Watchung Ave & Broad St in Montclair/Glen Ridge, where my Dad took me for ice cream sodas as a kid and where a Sopranos episode was filmed. Still open.
http://holstens.com/ opened 1939
Hard to keep a store open @ $3.25 a shot.
We have an ice cream/candy shop in town that looks like that. Best ice cream and candy around. Still going gangbusters since around the 1950’s I think. They recently expanded and opened up another shop in the newer part of town. They got creative though and expanded their candy into all the drug stores here. They have their own end cap in all of them. It’s the candy Kevin McCarthy recently gave to someone on the floor of the House of Reps.
https://www.dewarscandy.com/