There's the Pipe Rack
8433 Germantown Ave
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Holt's
Center City Retail Store
1522 Walnut Street
Northeast Philly Retail Store
12270 Townsend Road
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Black Cat Cigar Company
1518 Sansom Street They moved and I don't recall if this is the old or new site.
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I've been to Holt's at Center City...take a cab cause parking is crazy. GREAT store and a smoking lounge upstairs.
Black Cat Cigar Co. I've never been to but ordered pipe tobacco from them.
Never been to the Pipe Rack ether.
That's the only ones that I could suggest. I'm sure someone will come along and point you to some other places.