BI774 Type 1 Ho-Ni 75mm Artillery
Visit to the Aberdeen Proving Grounds Ordnance Museum, 23 Oct 2004.
Thanks to Whipper_snapper for identifying this piece. There's not a lot out there on it, he managed to track it down through the illustration on the box of a Tamiya 1:35 model (link below)!
"After the start of the Pacific War, units of the Imperial Japanese Army began to encounter advanced Allied medium tanks, such as the M4 Sherman. The Japanese Type 97 Chi-Ha main battle tank lacked sufficient armor or armament to deal with this threat, and work was begun on a tank destroyer version.
The Type 1 Ho-Ni I was developed by utilizing the existing Type 97 chassis and engine, and replacing the gun turret with a 75 mm Type 90 Field Gun mounted in an open casemate with frontal and side armour only, which made it very vulnerable in close combat. The Type 1 Ho-Ni I was designed to operate as self-propelled artillery in the armored divisions. The design had no provision for machine guns, and although looking very similar to early German Panzerjäger tank destroyers, the Type 1 Ho-Ni I was designed to operate at ranges of up to 12,000 meters.
The mounting for the 75mm Type 90 field gun allowed for ten degrees of traverse and elevation from -5 to +25 degrees. The Type 1 Ho-Ni I carried 54 rounds of ammunition.
Production in small quantities was made between 1941 and November 1943, until superseded by the Type 2 Ho-Ni II with its Type 91 105mm howitzer. The total number produced was only 124 units."