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15" W x 21" H
' cast into the iron
The interior pages are in overall good condition
This sign advertises sales in bulk quantities only
Early 20th Century Piston Cutaway Demonstrator by Welch Scientific uv 15" W x 21" HNo. 1753 (1 3) Gas Engine Model Four Cycle Engine W. M. Welch Scientific Co. Chicago Antique cast iron and aluminum piston cutaway display model. This piece is an early Welch build. It represents a cutaway of one of the many functional pistons manufactured by the company and features moving parts to demonstrate the inner workings. The Welch Scientific Company was an educational supply company founded in 1880 by William M. Welch in Maquoketa, Iowa. In
