Teschemacher, Margarete - Large Signed Photo in World Premiere of Daphne

German soprano (1903-1959), particularly associated with the German repertory.  Large photo shown as Daphne in the world premiere of Strauss' Daphne.  Photo is mounted on a mat, signed and inscribed by her; mat is also signed in pencil by the photographer (illegible name), 1941.  Total size is 10.5 x 14.5 inches, actual photo is 6.9 x 9.25 inches, mounting traces on verso, in excellent condition.