Members of the Second International Congress on the Standardization of Sex Hormones. Photograph, 1935.

Unknown artist

Lettering: Surnames of the persons shown are inscribed on mount. First name is given as "Laquer": Fritz Oscar Laquer (b. 1888) was the author of "Hormone und innere Sekretion", 1934, but as Parkes states that Ernst Laqueur was at the meeting, the name inscribed is presumed to be mis-spelt. League of Nations, Sex Hormones Conference July 1935.