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
Declaye Joseph
This is an exceptional 
weapon: it is a prototype of a semi-automatic service rifle in the Belgian 7.65 
mm cal, invented and patented by 
Joseph Declaye 
aug 31, 1931 under n° 381628.
"7.65 b.blindée" (jacketed bullet) refers to the 7.65 x 53 mm in use in the 
Belgian army 1889-1940 (bullet was modified in the early 1930's) and in other 
armies as well, mostly South-American ones but also the Turkish before and 
during WO 1. A.k.a "Argentin 7.65".
Joseph Declave was 
an engineer who started his career in the 
FN Herstal, 
where he helped producing and dealing the first Browning semi-auto pistols.
In 1908, he was contracted by the "Anciens 
Etablissements Pieper" (AEP) as technical 
director. Together with 
Bernard Clarus, 
he helped in the develpment of the Bayard pocket pistols.
During WO 1, he was sent to England and to the United 
States to follow and control the production of weapons and ammunitions destined 
to the Belgian army. After the war, he became general manager of the 
AEP 
and kept that function until his retirement in 1931. He was holder of abt 20 
patents covering hunting shotguns, pistols, carbines etc, of which a part were 
sold to the 
AEP when he 
retired (n° 381628 was not part of that sale).
The stock is quite special for the time: the "pistol grip" is located under the 
receiver and is just a round hole cut into the stock itself. The long cut in the 
shoulder stock is destined for a better prehension of the rifle in bayonet 
skermishes. The return spring housing is in line with the barrel, behind the 
breech.
The events around the manufacture and patent appliance remain unknown, as is the 
identity of the maker of this prototype.
Maybe the 
AEP, 
or even the 
FN ?
GP with much appreciated help from MAX, MD and 
PHL












Et voilà le brevet













