American Steam Gauge Co. Calumet and Hecla 30 x 72 Corliss Engine Counters

Two industrial engine counters manufactured by the American Steam Gauge Co. of Boston. Includes a Calumet model counter housing internal gear mechanisms and numeric wheels, serial number 17598, along with a Hecla 30 x 72 Corliss Engine cover plate and housing with multi-digit viewing windows. Both feature heavy brass and metal construction with visible exterior markings and interior mechanical components.