Pair of signed color candid photographs of the innovative American sculptor, each signed "Sandy Calder" in black ballpoint ink, adding an arrow pointing to himself in one of the images. He is shown in a red shirt embracing, respectively, Arthur and Anita Kahn. Kodak prints dated June 71 on the verso, both in very fine condition and measuring 7 x 5 inches. Together with a third same format color candid photograph, dated January 72 on the verso, depicting the artist with Arthur Kahn and an unidentified other man in front of one of his large mobiles, the form with which he was most closely associated.

The collection of the longtime friends of Alexander Calder, Arthur and Anita Kahn, contained over eighty works by the artist and was sold in 2015 at Christie's, being the most significant grouping of works by the artist ever to be offered at auction. A world renowned dentist with a roster of celebrity clients, Arthur Kahn was a pioneer in his profession, as one of the leading kind of proponents and developers of gnathology, an alternative to orthodonture. Anita Kahn had been an art student at Temple University and during the 1950s she resumed her studies at The New School for Social Research in New York as a student of Moses Soyer, Richard Pousette-Dart, and Anthony Toney. This rekindled interest in the arts led in the following decades to Anita and Arthur Kahn becoming art collectors and patrons. Examples from their collection have been exhibited in museums throughout the world including the Brooklyn Museum, the Museum of Modern Art in New York and the San Francisco Museum of Modern Art.