GEORG ANTON SCHEID
Vienna Secession Brooch 
Parcel gilt silver, opal, enamel & pearl
Length: 3 cm (1.18 in) Width: 2.8 cm (1.1 in)
Back, pin & catch all marked: ‘GAS’, 'A A' for Vienna
Austrian. Circa 1900
Fitted case
Literature: cf. Schmuck in Deutschland und Österreich 1895-1914
Ulrike von Hase, 1977, page 332