I remember Ron Oser's two shops even before Bustelton Avenue. In 1973 he and Bob Rose opened a tiny place called Comics for Collectors, downtown Philly. (I think it was on Spruce Street.) Quite possibly, it was the first real comics-only store in Philadelphia. I had to take a bus and a train to get there!
You'd open the door and practically bump into a glass display case, that's how little room there was. Primarily they carried higher-end items from the Golden Age. They soon expanded to sell all current comics and a load of Silver Age back issues at their 2nd location on Walnut Street.
I visited there once week without fail, for years. Oser split with Rose and then moved to the Northeast for Comic Investments. Thankfully that store was within walking distance! The last comic I remember buying there was Dark Knight Returns. Then I moved to LA.
