Looks like its all there,still has the skeleton key to lock & unlock, amazing condition! believe it tests the compression on steam engines.
Vtg 1890's Ashcroft Mfg Steam Engine Indicator Tool compression Train Railroad
Ashcroft Mfg Gauge Industrial Sprinkler NY STEAM PUNK 6” #
Antique Ashcroft Mfg Co 12" Brass Steam Pressure Gauge FOR PARTS OR REPAIR ONLY
Vintage Antique 3 inch Westinghouse Test Gauge Ashcroft Mfg. New York
Vintage Antique Westinghouse Test Gauge Ashcroft Mfg. New York
Vtg LARCO Wrench & Mfg Corp. Pipe Wrench -Trade "LARCO " Mark, Drop Forged 8”