Unnumbered detail and decoration drawings.
24 Sheets: design sketch for tympanum filling, plan for the layout of the boardroom, furniture designs for the restoration room, society room, boardroom; lighting for the boardroom, society, restaurant and reading room; ornaments and heads for the doors in the boardroom, fireplace and chimney in the boardroom with a drawing of a 17th century Drenthe fireplace from a house in Gieten, initialled by J.Th.J. Cuypers, stamped by Central Royal Furniture Factory and Warehouse H.F. Jansen & Sons in Amsterdam, dating 1913, 1914, scale 1 to 1, 1 to 10, 1 to 20.