CALDER, ALEXANDER "SANDY" Autographed letter signed ("Sandy Calder"), one page, s.l., January 21, 1950. To Leonard [Horwich?] expressing sympathy over the premature closing of an art show in which Calder's work was featured, and stating that he believes he should still be paid the full commission of $1,000 for exhibiting. Floated on mat and framed. 10 3/4 x 8 1/2 inches.