Sphinx
From LGBT Archive
The Sphinx in Gerard Street, Soho,was a gay club opened by Muriel Belcher and Dolly Mayers in 1937. The opened The Music Box later hat year in Leicester Place.
See Timeline of West End Bars and Clubs.
References
Queer London – Perils and Pleasures in the Sexual Metropolis, 1918-1957 Matt Houlbrook, The University of Chicago Press, 2005.