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| Plan and section of east branch of Great Drain; unfinished ... John Travlos ... Possibly section Λ? Dirty Cartridge Paper Drafting Ink ... Plan and section of east branch of Great Drain; unfinished. |
| East Building: euthenteria block over Great Drain ... W.B. Dinsmoor, Jr ... Dirty Heavy Tracing Paper Drafting Ink ... 1967 ... East Building: euthenteria block over Great Drain. |
| Isometric drawing of the Great Drain west of Eponymous Heroes ... W.B. Dinsmoor, Jr ... 87-533 87-533 ... 1974 ... Isometric drawing of the Great Drain west of Eponymous Heroes. |
| Isometric drawing of the Great Drain west of Eponymous Heroes ... W.B. Dinsmoor, Jr ... 87-533 87-533 Dirty Heavy Tracing Paper Drafting Ink ... 1974 ... Isometric drawing of the Great Drain west of Eponymous Heroes. |
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