A machine translation of Áðîíåêîëëåêöèÿ 2'1999: Áðîíåòàíêîâàÿ òåõíèêà Âåëèêîáðèòàíèè 1939-1945 ãã. (ÁÒÐ, ÁÀ) will give you details of the 1920 and 1924 Pattern cars and their upgrades and their dimensions in those mm things.
P.S. That jumble is simply h ttp://w...