The American Waltham Watch Company Historic District encompasses the former factory of the Waltham Watch Company, the leading American watch manufacturer of the 19th century and the city's largest employer.
 Located on Crescent Street and the banks of the Charles River, the surviving elements of its manufacturing facility date from the 1870s to the 1910s, and include particularly fine industrial Romanesque architecture.
 The buildings have been converted to a variety of commercial, industrial and residential uses since they ceased being used for watchmaking in the 1950s.
 The complex was listed on the National Register of Historic Places in 1989.
Clemens House—Columbia Brewery District is a historic district in St. Louis, Missouri.
 Bounded by Maiden Lane, Cass Ave., Twenty-first, Helen, and Howard Sts., the district was added to the National Register of Historic Places in 1984.
 A boundary increase, roughly bounded by St. Louis Ave., N. Florissant Ave., Maiden Lane, and N. Twenty-first and N. Twentyieth Sts.
 was added in 1986.
 The district includes single dwellings, at least one religious structure and manufacturing facilities.
 Architectural styles include Mid 19th Century Revival, Late 19th And 20th Century Revivals, Romanesque and Late Victorian.
South Central Avenue Historic District is a national historic district in Baltimore, Maryland, United States.
 It contains brick two- and three-story industrial and residential buildings reflecting over 150 years of utilitarian adaptation of buildings and space.
 The district includes early 19th century rowhouses, late 19th century and early 20th century manufacturing and warehouse buildings, gas stations, stables, car barns, commercial/residential buildings, and corner stores.
 Several larger buildings are the Bagby Furniture Company Building (4 stories), the Strauss Malt House (5 stories), and the Alameda School.
 Many rowhouses have been covered with formstone.
The Gilbert Colburn House is a historic house at 110–112 Crescent Street in Waltham, Massachusetts.
 The two-story wood-frame duplex was built c. 1870, and is a nearly intact example of an Italianate house built for Waltham Watch Company workers.
 The main facade is symmetrical, with a pair of entrances at the center, each with its own ornate scrolled hood.
 They are flanked by a pair of two-story projecting polygonal bays with apron panels.
The Enfield Village Historic District encompasses the historic 19th century village center of Enfield, New Hampshire.
 The district extends from Oak Grove Street in the west to the junction of Baltic Street and United States Route 4 in the east, and includes properties on both sides of the Mascoma River, from Route 4 to the junction of Pillsbury Street and Shaker Hill Road.
 The village had modest rural beginnings, but began to grow economically with the arrival of the railroad in the mid-19th century, and through the economic activity of the local Shaker community, located on the south side of Lake Mascoma.
 This resulted in a significant number of Greek Revival and Italianate style houses in the village.
 The economic power of the Shakers was significant in the village; despite its location outside the village, the Shakers owned or controlled the mills that were the early economic centerpiece of the village.
 Although a number of mills were built, the major economic activity was eventually consolidate in the Baltic Mills complex, the only major mill complex to survive.
 These privately owned enterprises resulted in the town's largest period of economic growth, around the turn of the 20th century, when much of the town's commercial center was developed.
 The village is also home to the town's major civic structures, including c. 1901 Whitney Hall, which houses the town offices and library, the 1852 Unitarian church, and a c. 1907 school, now Enfield Elementary School.
The Henry N. Fisher House is a historic house at 120 Crescent Street in Waltham, Massachusetts.
 It is a 2 ⁄ -story wood-frame structure, with the asymmetrical massing typical of Queen Anne houses.
 It has a wraparound porch with turned posts, lattice railing, and a sunburst motif in the gabled pediment above the steps.
 The interior has well-preserved woodwork and marble fireplaces.
 The house was built c. 1881–86, and is a well-preserved Queen Anne Victorian on the city's south side.
 It was home for many years to Henry N. Fisher, who served as city mayor in the late 1880s, and was a foreman at the Waltham Watch Company.
The Waltham Watch Company, also known as the American Waltham Watch Co. and the American Watch Co., produced about 40 million watches, clocks, speedometers, compasses, time fuses, and other precision instruments between 1850 and 1957.
 The company's historic 19th-century manufacturing facilities in Waltham, Massachusetts have been preserved as the American Waltham Watch Company Historic District.
The Junction Shop and Hermon Street District is a historic district comprising 28 industrial properties on Jackson, Hermon, and Beacon Streets on the south side of Worcester, Massachusetts.
 It is a remnant of a once larger 19th and early 20th century manufacturing district just west of the railway junction between the Boston and Maine Railroad and the New York, New Haven and Hartford Railroad.
 It was listed on the National Register of Historic Places in 1980.
Xircom, Inc. was based in Thousand Oaks, California, with manufacturing facilities located in Penang & Malaysia and international offices throughout Europe and Asia Pacific.
 They were one of the first companies to develop network computing products for notebook computers.
 Products included computer memory cards, LAN adapters, modems, and remote access server products.
 The company's products enabled notebook users to share information over a network connection.
 During fiscal 1999, the company introduced 56K modems in the MiniPCI form factor.
 In September 1999, the company acquired Rex PC Card Organizer product line.
 During fiscal 2000, the company acquired Omnipoint Technologies, Inc. and Entrega Technologies Inc.
 Branded products accounted for 65% of fiscal 2000 revenues and OEM products, 35%.
 In 2001, Intel acquired Xircom and in early 2003 laid off most of Xircom's Thousand Oaks employees.
The Dubuque Casket Company is a historic building located in Dubuque, Iowa, United States.
 The city was a leading national market in the production of caskets towards the end of the 19th century.
 This location had been the site of a casket manufacturing plant from 1877 to 1987.
 The Dubuque Furniture and Burial Case Company was the first firm in Dubuque and the first to locate here.
 The building was largely destroyed by fire in 1883 and the company was forced out of business.
 The Dubuque Casket Company was incorporated in 1893 and acquired this property.
 They started construction of the first part of this building the same year.
 The four-story brick Neoclassical building was one of the largest manufacturing facilities in Dubuque.
 The machine and equipment room was located on the first floor, they manufactured fine cloth covered caskets on the second floor, they manufactured undertaker's dry goods on the third floor, and the fourth floor was used for storage.
 The first addition, now known as the center section was begun in 1903, and another expansion that also unified the main facade was begun in 1911.
 Two other Dubuque casket manufacturers, Iowa Coffin Company and the Hawkeye Casket Company, were out of business by 1924.

Question: Which company's historic 19th century manufacturing facilities located in and around 110 Crescent Street in Waltham Massachusets produced about 40 million products over 107 years?
Answer: Waltham Watch Company