Clock Unknown Limestone Fair ... 350-300 B.C.
The Klepsydra and environs ... John Travlos ... Originally Ptg. 248. XVI-48 XVI-48 Dirty Cartridge Paper Drafting Ink
Perspective of the Klepsydra for Agora Guide ... John Travlos ... 83-217 83-217 Fragile Torn Dirty Heavy Tracing Paper Drafting Ink ... 1961
Perspective of the Klepsydra for Agora Guide ... John Travlos ... 83-217 83-217 ... 1961
Klepsydra drain where it tunnels through bedrock under the Middle Stoa ... north 2752 Horizontal (normal) ... 4 Jul 1968
View of the drain after the removal of one pair of drain tiles ... north 2150 Horizontal (normal) ... 17 Mar 1959
