Sumida, Tokyo Sumida, Tokyo , literally "Ink Field", is a special ward located in Tokyo Metropolis, Japan. The English translation of its Japanese self-designation is Sumida City. As of May 1, 2015, the ward has an estimated population of 257,300, and a population density of 18,690 persons per km². The total area is 13.77 km². Sumida is in the northeastern part of the mainland portion of Tokyo. The Sumida and Arakawa are the major rivers, and form parts of its boundaries. Its neighbors are all special wards: Adachi to the north; Arakawa to the northwest; Katsushika to the east; Edogawa to the
Sumida M.2593 had a crew of six men, and was armed with either one 6.5 mm machine gun or one 7.7 mm machine gun. One version, the Type 91 Armored Railroad Car So-Mo was produced without a main fixed machine gun for armament. A second variant produced by Ishikawajima was known as the Sumida Model P Armored Car. It was used by the Special Naval Landing Forces (SNLF) of the Imperial Japanese Navy (IJN). Sumida M.2593 The Sumida M.2593 (Type 91) was an armoured car produced in Japan in the 1930s. It could operate on both the roadway and railway lines. Designed