scans of 2 photos publicizing the London performances of Balanchine's APOLLON MUSAGETE in 1928. (note the typical lack of the choreographer's, i.e. Balanchine's, name in the captioning)
selections from this series? are published in Propert's THE RUSSIAN BALLET, and probably elsewhere. in both cases Terpsichore is upstage, so it's hard to say if the performance(s) photographed included Nikitina or Danilova as the lead muse. i suspect Danilova.