- Wall decorations for Baron Van Zuylen's study, among others, with measurement drawings and mention of devis K, planche Q no. I, commission number 3282 by Cuypers & Co, signed by J.Th.J. Cuypers, 1898, scale 1 in 50;
- Iron grates over the warm room in room 80, scale 1 to 10;
- Floor plan of room 76 and 77;
- Floor plans indicating 58 fans in room 79, 1910, scale 1 to 20;
- Chimney stack in room 76.

Notes: With three fine drawings.
Reference: For the floor plans listing fans, see t 525.