For each MGM film Garbo was photographed on the set by a still photographer.
Garbo also had at least one session with a portrait photographer.

MGM Production:  938
Still photographer:  William Grimes
Movie stills:  168
Portrait photographer:  Clarence Sinclair Bull
Source:  Garbo - Portraits From Her Private Collection  by S. Reisfield & R. Dance

Clarence Sinclair Bull made the portraits of Garbo for the film.
Bull again had a special session with Garbo in December 1936.
The Stills were made during the production by William Grimes.
168 Movie Stills were shot.
More about the film: click  HERE!