(1) La Scala, Milan: "Stagione Carnevale-Quaresima, 1900-01; Apertura 26 Dicembre 1900." Advertising the Lent Carnival season, with a list of the operas and ballets.

(2) La Scala, Milan: 1903. Number 59 of a limited printing La Scala postcard from January 8, 1903. On that date there was a production of Hellmesberger's Porcellana di Meissen. This postcard apparently commemorates the visit of the Queen of Italy, Elena of Montenegro, to La Scala.

(3) Anvers: 1900.

(4) Breslau: 1899.

(5) Brunn: c1900.

(6) Bucarest: 1899.

(7) Dresden: 1897.

(8) Dresden: Gruss aus Dresden: Sender writes, "I think Dresden is lovely. We all went to the opera last evening, Barbier von Sevilla, it was very good. The King was their [sic] . . ." Circa 1900.

(9) Dresden: 1900.

(10) Dusseldorf: 1900.

(11) Frankfurt: D-Day Anniversary, June 5, 1947.

(12) Frankfurt: 1898.

(13) Frankfurt: 1900.

(14) Frankfurt: c1900.

(15) Geneva: 1911.

(16) Geneva: 1907.

(17) Genova: 1900.

(18) Graz: 1904.

(19) Graz: 1900.

(20) Hamburg: 1900.

(21) Hamburg: 1900.

(22) Leipzig: 1900.

(23) Magdeburg: 1905.

(24) Munich: 1896.

(25) Munich: 1900.