Michal Smajewski, known as Michel SIMA Alexander Calder, c. 1950 Vintage silver print Signed and annotated in pencil by his son Pierre Sima on verso Image: 24 x 23.50 cm - Sheet: 31.50 x 23.50 cm Provenance: Michel Sima family collection Vintage gelatin silver print ; signed and annotated in pencil by his son Pierre Sima on verso Image: 9 7/16 × 9 1/4 in. - Sheet: 12 3/8 × 9 1/4 in. Michal Smajewski, known as Michel SIMA