Plan of Mycenaean grave ... Piet de Jong ... 5-281(b) 5-281(b) Dirty Cartridge Paper Drafting Ink
Plan of Mycenaean grave; traced version with minor changes ... William B. Dinsmoor, Jr ... Fragile Dirty Heavy Tracing Paper Drafting Ink ... 1969
Plan of Neolithic shaft grave ... Piet de Jong ... PD 427 is lower illustration in publication. 5-283 5-283 Dirty Cartridge Paper Drafting Ink
Plan of Neolithic shaft grave ... Piet de Jong ... PD 427 is lower illustration in publication. 5-283 5-283
