Terracotta cover tile (A 1322) in the Agora Museum ... Gorham P. Stevens ... O-261 O-261 Dirty Cartridge Paper Drafting Ink Pencil ... 1949
Roof of curved terracotta tiles: Pan tiles not wedge shaped. Isometric drawing ... Gorham P. Stevens ... O-262 O-262 Dirty Cartridge Paper Drafting Ink Pencil ... 1949
Roof of curved terracotta tiles: Pan tiles wedge shaped. Isometric drawing ... Gorham P. Stevens ... O-263 O-263 Dirty Cartridge Paper Drafting Ink Pencil ... 1949
Correct and incorrect overlapping of curved terracotta pan tiles ... Gorham P. Stevens ... Section Θ 264 Section Θ 264 Dirty Faded Cartridge Paper Drafting Ink Pencil ... 1949