Plan of Geometric grave. Grave 1 ... Piet de Jong ... For available drawing of this series (E 19:3) see Ptg. 220. 81-249 81-249 Dirty Cartridge Paper Drafting Ink ... 12/05/1939
Plan of Geometric grave. Grave 2 ... Piet de Jong ... 81-249 81-249 Dirty Cartridge Paper Drafting Ink
Agora VIII. Envelope with 8 drawings ... Cartridge Paper Light Tracing Paper Drafting Ink
Storage Pit B 14:5; cross-section ... Eva Brann ... 81-249 81-249 Fragile Light Tracing Paper Drafting Ink ... 1958