C.G. Ehrenberg, Symb. Phys.: t. 3 (1900) [C.G. Ehrenberg] [35]
drawing: C.G. Ehrenberg [29]
lithography: C.W. Röthig
Illustration contributed by:
C.G. Ehrenberg, Symb. Phys.: t. 3 (1900) [C.G. Ehrenberg]