Plan and elevation of the Great Drain in Section E ... Charles S. Spector ... Dirty Cartridge Paper Drafting Ink ... 1933
Sections through the stoa annex of the Stoa of Zeus ... Charles S. Spector ... Dirty Cartridge Paper Drafting Ink Pencil ... 1933
House of Late Roman period to S.E. of Tholos ... Charles S. Spector ... See PD 86. Unfinished pencil drawing. Dirty Cartridge Paper Pencil ... 1933
