System Analysis in the Reconstruction of Rotaprint Images of Typewritten Text: Using the Example of Orders for the Distribution of the Fleet of the Kamlesosplav Trust, 1939–1948

In rotaprint images, the greatest problems are related to the identification of numbers.Unclearly printed alphabetic characters are usually identified by meaning, which is not the case for numbers.Based on the example of the analysis of rotaprinted bulletins of the "Kamlesosplav" trust from the period 1939-1948, the following identification technique is proposed.At the first stage, the numbers available in the document are grouped: firstly, numbers are identified whose reading there is no doubt about, secondly, in the reading of which there are several alternative options, and thirdly, unreadable numbers.At the second stage, the presence of any of the alternative numbers later in the document is determined.If it is available, it is crossed out from the list of alternatives.Finally, at the third stage, an analysis of earlier or later documents is carried out, due to the fact that individual boats worked in a particular farm for several years.Based on this methodology, the identification of boat numbers in orders for the distribution of the fleet of the period 1939-1948 was carried out, the resulting numbers were summarized in a table.Analysis of these data made it possible to assert that despite the fairly serious mobilization of vessels from timber rafting farms in other regions (primarily northern rivers), the mobilization of the vessel personnel of the "Kamlesosplav" trust was carried out to an extremely limited extent.Most likely, ships from the Astrakhan, Stalingrad and Saratov agencies were involved in combat missions, as they found themselves directly in the area of combat operations on the Lower Volga.On the other hand, throughout the war years there has been an increase in the number of vessels in the trust's fleet: compared to 1939 in the middle of the war, approximately one and a half times, and during the post-war restoration of the national economy, more than twice.In particular, judging by the reference book by S.S. Berezhnoi, at least five decommissioned and disarmed minesweepers were transferred to the trust.Thus, the reconstructed data allows us to establish that "Kamlesosplav" during the Great Patriotic War solved the important strategic task of providing forests and forest materials to the farms of the lower Volga, including the needs of the front.Because of this, the transfer of trust vessels to other farms was carried out in extremely limited quantities.And vice versa, "Kamlesosplav" itself accepted former mobilized ships from other farms.