Type Scientific Instruments

Check the listing for details. STEAM ENGINE ANALYZER CROSBY STEAM GAGE AND VALVE CO.. Listed at 92.41 USD. CROSBY Steam Engine Analyzer/indicator from The CROSBY Steam Gage and Valve Co., Boston Mass, U S A. Pat'd July 2 - Sept 2, 1879, April 11 - Sept 5, 1882, April 30, 1885. It has 13341 stamped on the connecting arm. It is made of stainless steel with brass inside. It seems to be in good condition. The parts move freely and it apears to be in original condition. Measures both parts together 19cm high. This gauge would have been used to monitor the pressure levels in steam engines, providing insight into the performance and efficiency of the engine.

$46.21
$92.41