Perspective sketches of restorations of three main Pnyx periods for plaster model ... John Travlos ... Heliotype to Homer A. Thompson. Annotated in pencil. 86-507 87-452 86-507 87-452 Fragile Stained Repaired Heavy Tracing Paper Drafting Ink ... 1961 ... PD 1155 (DA 979) ... PD 1155