Some of the most beautiful work of this craftsman, and many others, are in this book “Liège Gunmakers through their Work. 1800 - 1950”.
For more detail see: LIEGE GUNMAKERS
DEUSTER Guillaume
DEUSTER Guillaume, harquebusier in LIEGE.
Registered with the proofhouse of Liège of 1860 to 1878 and followed DEUSTER G. & Son, registered with the proofhouse of 1879 to 1885.
It’s patentee 8 of which 3 relate to the revolvers.