In the mid 1800s, Thomas Corbett of Spencer Street was Patentee and Manufacturer of Air Pumps, Mathematical Instruments, Improved Fancy Measuring Tapes, Land Chains, Mariners’, Miners’ and Pocket Compasses, Box and Ivory rules, Chain Scales, etc. (Foreign Tapes made to order warranted correct). They also manufactured Working Model Steam Engines of every description. Source: Perry…