it does look like her. (What a beauty.):
http://images.google.com/imgres?imgurl=htt...t%3D20%26um%3D1http://www.ballerinagallery.com/argyle.htmAlso, he and Andre Charlot were in Hollywood at the same time, and there was a Carlot's Revue at the El Capitan in 1940 -- and possibly in 1941. There are photos of the 1940 production in Special Collections at the UCLA Library.
She was still dancing at this time in California, appearing as the "young ballerina" in the 1941 film Nuit de Decembre (English title: Night in December), by German emigre director Curtis Bernhardt.
http://www.imdb.com/name/nm0034594/I appreciate this chance to learn more about this dancer, whom Julie Kavanagh describes as Ashton's "first English muse." And Ashton had already worked for Charlot in London, in 1936. So there are several connections.
So the attribution is possible, though not at all proven (so far).
Argyle,was "in Ashton's estimation, the most beautiful woman of her generation." Your photo, rg, certainly captures something of that.