Originally settled in 1738, Sellersville, Bucks County, Pennsylvania was incorporated as a borough in 1874. In the second half of the 19th century, cigar, textile, and other industries established companies in Sellersville. As of 2014, Sellersville is mainly a commuter town, although some historic structures, including the Sellersville Theater and the Washington House, have been restored and are local attractions. The Sellersville Museum local history collection, 1770-2014, contains both primary and secondary-source materials, such as business ledgers, deeds, scrapbooks, photograph albums, newspaper clippings, and subject files relating to the people, businesses, organizations, and other aspects of Sellersville.
U.S. Gauge, a manufacturer of gauges and testing devices to measure pressure, temperature, flow, and liquid level, was founded in Sellersville (Bucks County, Pennsylvania) in 1904. It was acquired by Ametek, Inc. in 1944 and continues to operate as a division of that company as of 2014, although the manufacturing facilities in Sellersville closed down between the 1980s and the 2000s. The Sellersville Museum collection on U.S. Gauge, 1905-circa 1990, consists largely of U.S. Gauge Social Club newsletters (1935-1941) and photographs; there are also some additional printed materials and an original payroll ledger (1905-1906).