O.C. Berg, C.F. Schmidt, Atlas. Off. Pfl., vol. 4 : t. 162, fig. A-F (1899) [C.F. Schmidt] [38]
drawing: C.F. Schmidt [485]
lithography: C.F. Schmidt
Illustration contributed by:
O.C. Berg, C.F. Schmidt, Atlas. Off. Pfl., vol. 4 : t. 162, fig. A-F (1899) [C.F. Schmidt]