Opera Singers - Lot of 16 Signed Postcards 1902-1911 Book Signed particularly lower left but outside

particularly lower left but outside of the area of the photo and signature

with pianist Charles Wadsworth

the third is 8

Willy Bader

Opera Singers - Lot of 16 Signed Postcards 1902-1911 Book Signed particularly lower left but outsideLot of 16 postcards depicting landscapes, monuments, buildings, and others, signed by opera singers including Aino Ackte, Alfred von Bary, Annie Dirkens, Bozena Bradsky, Elsa Laura von Wolzogen, Erika Wedekind, Felix Senius, Felix von Kraus, Gertrude Foerstel, Hansi Niese, Josef Josephi, Lucy Weidt, Mia Werber, Marie Gutheil Schoder, Pepi Kramer Glockner, and Selma Halban Kurz. Some of them are inscribed with a short sentiment, all of them dated