Excerpt from this Guide:
1925 ~ 1927 The Finnish Civil Guard produced a M24 which is very similar to the Russian M91. The M27 and improved M28 were adopted with a 27” heavy barrel and were produced from 1927 ~ 1940. M28/30 & M39’s followed with improvements in the barrel bands and pistol grip type stocks. These rifles are very accurate and desired by all Mosin Nagant collectors.
1950’s: M44’s are manufactured in Poland, Hungary, Romania, and China. These were designated as Type 53. Hungary and Romania also produced a limited number of M91/30s. Czechoslovakia shortened M91s and these are designated as M91/38s. They are recognizable by the early dates and hexagonal receivers. M91/30s were also cut down, probably by the Soviet Union and are known as M91/59s.