By making a placement list (by Lonneke Bakkeren), the contents of the archive became clear. The material was packed in archive boxes, binders and tubes. The documents in the boxes, binders and tubes were generally packed by project. In addition, there was documentation in multi folders.In the archive, categorical cleaning was done, that is, certain items were removed from the files. In this case, all duplicate material was removed from the project files. In addition, financial documents have been removed. These include general ledger, cash and bank statements and other financial data (see Appendix 5) that are reflected in the financial statements. The annual accounts have of course been retained.This approach was chosen because it concerns a relatively small archive and project-based cleaning would take a disproportionate amount of time compared to the gain in space it would yield.During processing, the documents were described, ordered, numbered and packaged. After repackaging, the archive consists of 43 meters.The division into periods was also made in the inventory. However, the division should not be used too rigidly. It is possible that a project is initiated in the E.D. period, for example, and realized in the AKH period. The dividing line is then difficult to indicate. The classification into periods is based on the dating of the documents.The well-organized bureau administration has been a guideline for the processing of the archive. An effort was made to maintain the old arrangement of the binders as much as possible.Within the blue binders there was a separate arrangement to organize the records of the projects. This was done by subject using a kind of index (Appendix 3). This arrangement has been preserved in the archive and is referred to in the inventory as "project administration. The index that goes with this project administration, and is necessary to understand the inventory, can be found on the blue strip at the front of the inventory folder. It is not the case that all the numbers listed in the index are actually used. The blue folders also contained material of a similar nature that was not filed with index by the agency. This is referred to as documentation.The entire design and construction process was also coded. Each type of drawing was from about 1984, given a specific code that can be found on a list (Appendix 4). This classification is also maintained as much as possible in the archive and in the inventory the code is given in the description accompanying the drawings. The list of codes needed to understand the inventory can be found on the red strip at the front of the inventory folder.The documents can be classified under the following headings:1.Personalia2.Bureau3.Projects4.Additional activities5.DocumentationAd 1. Because this card could not be classified under the other headings, it was decided to create a category of personalia.Ad 2. The bureau heading includes all documents relating to the organization or administration of the bureau.Ad 3. The projects heading includes all project files, including those relating to tenders and competitions and unidentified projects that can be expected to have been designed by E.D. or AKH.Some of the acquisitions have a work number that is also given on the list of works (see Appendix 2). It is likely that when an acquisition was converted into a commission the acquisition number expired and a project number was assigned.The project files are arranged chronologically. For this purpose, dated records provided the desired information. If a project could not be dated, it is indicated by the designation z.j. (without year). All documents relating to one project can be found together under that project-drawings, written documents, documentation, photographs, negatives and slides about one project.If a project has an extension, restoration or other additions in a later period, then it has been decided to first make one general project description and to describe all construction phases under that description, so that it is clear that it always concerns the same building. Several work numbers can then fall under one description.It has been decided to follow the design process with the contemporary layout of the drawings. This means that drawings of different sizes fall under the same application number and are therefore not arranged in any particular order.4. These include lectures, adjudication and sitting on the Zeewolde building standards committee.Re 5.Documentation includes documentation of the firm's own work, documentation for acquisitions and tenders and documentation that served as inspiration. The arrangement used by the office has been adopted by the editor.The descriptions of the project files consist of the following sections:-Year number (in bold)-Project description (in italics and bold)-The work number according to the original list of works-The project architect-Description of the contents of the file, indicating the nature of the documents, the application number and the explanation of the documents-Eventually a comment and/or a referenceIn the description d, t, f, n, p, m- application numbers are used.d-request numbers are used for the written documents,t-request numbers for the drawings,f-request numbers for photographs,n-request numbers for negatives and slides found in the project file,p-request numbers for slides found in the slide collection and attached to the project file andm-request numbers for the models.EXAMPLEProjectDwelling house, Van Galenlaan 38 in Doorn, commissioned by the Zwaan familyWorking number: H 103Project architect: L.J. Heijdenrijk (E.D.)DocumentsOrder no. NotesWritten documents: d254 DocumentationDrawings : t251 Floor plans, facades, sectionsPhotographs: f61 Realized buildingNote: Not realizedIn the case of extensions or other additions, one general description includes several time indications, work numbers, project architects and descriptions.EXAMPLE1975-1985 Project Proefboerderij met vier woningen, Meerkoetenweg 26 in Lelystad on behalf of C.L.O. instituut voor veevoeding "De Schothorst "1975-1978 Construction Work number: S 109 Projectarchitect: L.J. Heijdenrijk, L.J. van der Stap (E.D.) Documents Aanvr.nr. Clarification Written documents: d245 Documentation Drawings : t245 Situation, floor plans, facades, sections Photographs: f52 Scale model, realized building Negatives: n71 Negatives from f521983-1985 Fountain Work number: D 01 Project architect: L.J. Heijdenrijk, W.G.B. de Lange Documents Aanvr.nr. Comments Written documents: d225 Documentation Drawings : t230 Existing site situation Photographs: f49 Scale model, realized fountain Negatives: n42 Negatives of f491985 Research into the sound-insulating effect of partition walls Work number: D 10 Project architect: J. Hermes Documents Applicant No. Comments Written documents: d232 DocumentationThe photographs numbered f114 to f133 are reproductions of photographs that were originally on panels measuring 50x50 centimeters. The reproduction photographs were made by Martien Kerkhof. The original panels have been destroyed.The books and periodicals found in the archives date mainly from the E.D. period.There was an employee (J.W. Jansen) in that period who took an interest in the bureau's library and developed an ingenious system with colored pieces of tape on the spines of the books, to divide the books into categories. Unfortunately, this classification can no longer be traced. The books and journals have been transferred to the NAI library. Appendix 1 provides an overview of these books and journals.