#7540 • American Combined Level & Grade Finder Inclinometer

Part of Avenue 501 Curated Selections | July 26, 2020 at 8:00 PM (timed auction by Alderfer Auction)

High bid $120.00

Status: Sold

Manufactured by Edward Helb Railroad, York, PA.  Mahogany and brass with large pitch grade window, compass and longitude sight window, c. 1904. 24” long