I am researching my Grandfather-in-law, A Rex Riccardi, today. While trying to hunt down where he lived with his parents and family when the 1920 census was taken, I googled their address from 1930. This was when Rex's father, Antonio, owned and operated a candy store. Well, this is a picture from 2009 of the location. The property is located at Passyunk and Montrose. I "walked around" a bit using street view and I would guess that the store front was on Passyunk. It was a corner store but has since had the front on Passyunk bricked up. Now it looks to me like it's a residence with access from Montrose.
This is the view from Passyunk...looks like the logical store front to me.