Was it Fredericks Sartorial Outfitters? Though that was before the 60's. I also used the Piccadilly Snooker Club on occasion with a mate of mine called Steve only he was a bit of a hustler so we didn't go in there all that often.
Sorry for the confusion PhilWilliamstreeter,
This is why I'm a little mixed up I thought you were talking about the first shop on the left of the arcade that fronted New Street. I had a look in the trade directory and in 1964 number 11 in the arcade was the Piccadilly Mens Boutique. By the way Badpenny in 1964 I bought a black satin effect shirt from M & J's on Ladypool Road and later in the same year I bought a purple one from Nelson House Dale End I think the purple one also had a frilled fron't.