Titel
zu den Filteroptionen- Watson, Robert Spence ; Schulze-Gävernitz, Gerhart vonGateshead on Tyne, 26.4.1892 [26th. April 1892]
- Watson, Robert Spence ; Schulze-Gävernitz, Gerhart vonGateshead on Tyne, 16.7.1897 [16 : VII : 1897]
- Watson, Robert Spence ; Schulze-Gävernitz, Gerhart vonGateshead on Tyne, 28.5.1894 [28th May 1894]