Antique M. Hardsocg Miners Oilwick Lamp. Hardsocg Imperial. Marked CROWN TRADE MARK (crown below a star) REGISTERED IMPERIAL with M. HARDSOCG, PITTSBURG, PA, 3 1/2 in high, lid hinges at cap hook. Nice condition: See photos for details.

From the Internet: "The Hardsocg Manufacturing Co. was an icon of mining equipment manufacturers and thanks to an excellent article in Eureka # 1, pp 13-16 by Dave Johnson, the history of the company is an interesting story. At one time, Hardsocg was the largest single manufacturer of mining tools and supplies in the world. As noted by Johnson, it's almost impossible to collect mining artifacts and not have something in your collection by Hardsocg. After years of blacksmithing and working in the coal mines of Iowa, in 1878 Martin Hardsocg started his company in Avery, IA to manufacture mining tools. In 1885, he moved the company to Ottumwa, IA and in 1891, the Hardsocg Manufacturing Co. was incorporated with him as president. Within a few years the company had dramatically expanded and owned and operated other companies specializing in mining equipment. In 1947, the Hardsocg Manufacturing Co. and all its holdings were sold to Cardox Co. of Chicago which continued to operate until 1969 when the company ceased operations."