Vol. 1a: May 16, 1916 - Oct. 31, 1916, (double piece for No. 19, not numbered, larger format, same invoice but not textile identical)

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

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

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