10.5 cm Feldhaubitze M.12

The Obuzierul Krupp, caliber 105 mm, model 1912 was a Romanian upgrade of the German 10.5 cm Feldhaubitze 98/09 howitzer used extensively during World War I. After two years of planning and experimentation by Romanian officers, the final design was approved and the required modifications were performed at Arsenalul Armatei in Bucharest. The German aiming system was replaced with an improved Romanian system and the maximum range was increased to 6,500 meters, being superior to the 6,300 meters maximum range of its German counterpart. Maximum elevation was also increased from 40° to 60°. Thirty batteries (120 pieces) were converted by Arsenalul Armatei before and during World War I. They appear to have lingered in Romanian service into World War II. Guns captured by the Bulgarians appear to have been placed into service, although they seem to have been out of service by the outbreak of World War II.[1]

Wikimedia Commons has media related to Obuzier Krupp, calibrul 105 mm, model 1912.

Obuzierul Krupp, caliber 105 mm, model 1912
A pair of Model 1912 howitzers firing during the Battle of Mărăști Kingdom of Romania
Type	Howitzer
Service history
In service	1912-1945
Used by	Romania Bulgaria
Wars	Second Balkan War World War I Hungarian-Romanian War World War II
Production history
Designer	Arsenalul Armatei
Manufacturer	Arsenalul Armatei
No. built	120
Specifications
Mass	1,155 kilograms (2,546 lb)
Barrel length	1.47 metres (4 ft 10 in) L/14
Shell	14 kilograms (31 lb)
Caliber	105 mm (4.134 in)
Carriage	box trail
Elevation	-5° to +60°
Traverse	6°
Muzzle velocity	300 m/s (985 ft/s)
Maximum firing range	6,500 metres (7,100 yd)