README Dataset of metadata extracted from 1:50.000-scale Soviet topographic maps covering Denmark from the period 1952-1988. Version 1.0 19-12-2018 Collected and organized by Stig Svenningsen and Mads Linnet Perner based on maps from the collection of the Royal Danish Library. You are welcome to use the data for research purposes if you provide the following reference: Svenningsen, Stig Roar; Levin, Gregor & Perner; Mads Linnet (2019) ”Metadata - Soviet 50K topographic maps of Denmark 1952-1988” Explanation of the columns in the dataset: Map ND - ID as printed on the map Print date - date of print as recorded in the printcode Print code - consisting of xxx followed by the print year and a letter marking the facility where it was printed Map source - the scale of the map source(s) as printed on the map Map source year - the year(s) of publication/print of the source(s) as printed on the map Map source first year - the year of the first source used Map source last year - the year of the latest source used Other information - the years of other documentation noted on the map Other information first year - the first year of other documentation used Other information last year - the last year of other documentation used Compiled date (составлено в) - the year of compilation as printed on the map Editor (редактор) - the name of the editor as printed on the map Compiler (Составила) - the name(s) of the compiler(s) as printed on the map Latest revision - date of the latest revision as printed on the map IMW sheet - reference to the corresponding map sheet in the International Map of the World