Heugel, n.d.[1846].
Editore
Paris: Heugel, n.d.[1846]. Plate H.503. Osservazioni varie
This file is based on high-resolution images obtained from the source using a method explained on this page. Heugel, n.d.[1846].
Editore
Paris: Heugel, n.d.[1846]. Plate H.503. Osservazioni varie
This file is based on high-resolution images obtained from the source using a method explained on this page. 
