Engine Component Appraisals

Handbook of Rock Excavation Methods and Cost by Halbert Powers Gillette

Outside Micrometer in Wooden Case

Edison Steam Pressure Gauge with Siphon Tube and Mount

Steam Power Stations by Gustaf A. Gaffert, 1946

Heavy Timber Construction, 2nd Edition by Fred R. Oberg

A Treatise on Masonry Construction, Tenth Edition by Ira Osborn Baker (1909)

Cable-Stayed Bridge at Night

The Design and Construction of Ships, Vol. II by John Harvard Biles

2 Cents John Adams US Postage Stamp