The project "enhanced turtle" (or turtle improved) was a struggle vehicle chassis from its roll of 2.5 m to 6.6 m in diameter should be. The Russian engineer Navrotsky proposed this vehicle before it should weigh 192 to 200 tonnes and has three rollers move. The armament should consist of a complex of weapons exist - 16 guns and ten machine guns. The turtle was a manually moving a protective shield for protecting Infantryman.
Source: Mostowenko, W.D., Panzer gestern und heute, Berlin, 1961, Deutscher Militärverlag, Seite: 46
Nice impression Centurion, I think this is the article in the Russian book.
Project of a gigant mobile artillery battery named "Improved Tortoise", created by engineer-designer Nawrotskow in 1917. Expected weight: 192 tons. Driven bya front "ball shaped" wheel.
Armament: 2 x 203 mm Howitzers 2 x152 mm Guns 4 x 102 mm Guns 8 x 76,2 mm Guns 10 x MG's
