Wikidata:WikiProject 20th Century Press Archives/Data sources
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People were active in creating and maintaining public archives of the Hamburg Institute of International Economics (Q1573234) (HWWA) from 1908 until 2005 and the "Wirtschaftsarchiv" of the Kiel Institute for the World Economy (Q1665030) in Kiel from 1914 to 2005. Since then, a lot of knowledge about the guiding ideas of the collections, the structures and the selection and ordering processes has been lost. Besides the metadata published on the web site and here, there are some publications, mostly about the digitization project (2004-2007).
Notes on the PM20 data sources edit
Wares archive edit
The structure of this archive was (up to 1998) just a flat alphabetical sequence of folders, suplemented by a comprensive card catalog with hints from multiple different keywords to the actual folder name. According to M. Wannags, who was in charge of the IT system for HWWA at that time, was the hierarchical structure only developed then, drawing heavily from the products category system of STW Thesaurus for Economics.
Subject headings archive edit
The "Länder/Sacharchiv" was organized by countries in the first instance (including Hamburg as a first level "country" due to the home region of HWWA - see the Alte HWWA Länderklassifikation), and a hierarchy of subject classes in the second instance. The structure as given in the Alte Hamburger Systematik is still incomplete. The most complete information probably can be found in the "Sachsystematiken-Synopse 1908-1998" (LINK) (an synopsis of different versions of the archive classification, in German. The columns 1908-1945 and 1946-1961 contain not completely verified information).
Subject signatures edit
The signatures of the subject classification are built as follows:
{field}({number}{extension}?)? (Sm{number})?
or, more formally as a regular expression:
[a-q](\d\d?[a-z]?)?( Sm\d{1-3})?