This article gives an overview of five papers read by participants in an international webinar held at The Centre for the Study of Manuscript Cultures (Hamburg) on October 19, 2021. The webinar was devoted to a study of paints made from mineral pigments and preserved in historical monuments. Employees of scientific institutes from Italy, France and Great Britain shared their experience in studying historical monuments with the help of modern non-invasive technologies.
Originally the portrait of S.A. Yesenin was attributed as a photograph dated by 1925. The portrait was not printed on photographic paper, but on typographic paper, since it is too thin and puffy, with no emulsion or barite layers. Microscopy of the image showed that the portrait was printed by phototype, i. e., it is a high-quality reproduction from a photograph. This portrait is one of a series of photos with S.A. Yesenin, made in Baku in photo studio of L.G. Bregadze in 1924. Thus it is revealed that the portrait of S.A. Yesenin under investigation is a reproduction of a photograph, printed on a sheet of offset paper, cut out from a book, brochure or magazine. The date of the portrait was revised: 1924, not 1925, as printed under the portrait.
The article describes the implementation of a digital processing program to improve and restore images of museum and archival objects obtained using non-invasive research methods. The practical meaning of this work is to reduce the influence of the human factor on the results of the study, automate the process of diagnosis and obtaining information through numerical processing: improvement, restoration and detailing of image fragments.
In article the information possibilities of the documents postponed in funds of the Central State Archive of the Historical and Political Documents of St. Petersburg which reflect the history of creation and work of the Leningrad headquarters of the partisan movement on the organization of partisan formations and control of their activity in days of the Great Patriotic War is analyzed. The analysis of archive materials will allow to estimate in a new way a role of the partisan movement in the battle of Leningrad and also degree of its efficiency, the reason of failures and disorganization at the initial stages of existence of the partisan movement and success achieved in 1943–1944.
On the basis of publications of communications periodicals (Vestnik Svyazi, Elektrosvyaz magazines), regional periodics, departmental publications, as well as archival materials, on the example of the Siberian departments, the personnel policy of the Soviet telecommunications industry in the post-war period is considered, the use of various mobilization forms and methods of labor organization. A brief review of such practices is provided.