Elegant rectangular hinged lid etui from WMF

Elegant rectangular hinged lid etui from WMF, with rounded edges and both sides hammered design; at the edge the company mark (ostrich and two inscriptions "WMF" and "G" ( Geislingen an der Steige) in a bee hive with smooth round arch, the brand was used from 1910 to about 1918; Alpacca.Silver; ca. 5,7 x 5 cm and 37g; traces of age and use