Contains:- Compensation application, 1914-1922- Invoice receipts, 1906-1914- Annual statistical reports, 1911-1914- Invoices of Limburg, 1906-1914

Building permit, invoices of craftsmen, cost compilations; site plan of the RMG real estate at Loher- u. Carnaper (Schönebecker?) Str., 1858, scale of 10 Ruthen, 1:250; Plan d. Vorgarten-Gitter am Museum, 1895

Correspondences (with Matschie), route reconnaissance book concerning Cameroon from 1903/04 (handwritten), invoices and lists