Heugel, n.d.[1886].
Editore
Paris: Heugel, n.d.[1886]. Plate H.6323. Osservazioni varie
This file is based on high-resolution images obtained from the source using a method explained on this page. Heugel, n.d.[1886].
Editore
Paris: Heugel, n.d.[1886]. Plate H.6323. Osservazioni varie
This file is based on high-resolution images obtained from the source using a method explained on this page. 
