Inquiry on G&F Galleries of Philadelphia, PA

I had someone ask me about G&F Galleries and whether any of their merchandise was good or not. Since I have not done business with them, maybe someone here who have done business with them would like to shed some light on this.
DORAN COINS - On Facebook, Instagram, X (formerly Twitter), & www.dorancoins.net - UPCOMING SHOWS (tentative dates)- 10/8/2023 - Fairfield, IL, 11/5/2023 - Urbana, IL., 12/3/2023 - Mattoon, IL.
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Collector of Early 20th Century U.S. Coinage.
ANA Member R-3147111
<< <i>I live in Philly and have not heard of this place. Where is it located?
P.O. Box 12501-WC
Mail order business and they advertise in NN, CW, World Coin News, and Bank Note Reporter. That is all I know.