Hart & Cooley, Holland, Mich., celebrated its 100th anniversary in June with a plant tour for customers and employees, as well as the unveiling of the company's new logo. The company was founded in 1901 by Howard Hart and Norman Cooley in New Britain, Conn. It manufactures grilles, registers, gas vent, chimney and flexible duct systems. It is owned by Tomkins Industries PLC of London, and opened its plant in Holland in western Michigan in1928.

The Holland location was born out of Federal Manufacturing, which supplied Holland Furnace with registers. Tuttle & Bailey, a competitor and manufacturer of ornamental grilles, was acquired by the company in1933. The current company president is Gary Henry, who took over when Tomkins bought the company in 1999. That year Tomkins also acquired Penn Ventilation. The company has manufacturing facilities in Jackson, Tenn.; Sanger, Calif.; Huntsville, Ala.; El Paso, Texas and Juarez, Mexico, employing more than 1,600 workers.

A number of past products and company memorabilia were on display in the Holland Museum in June, including toys from the 1920s, mortar shells made in World War II, ball bearings for the aircraft industry, and even an antiseptic lotion sold around 1940 under the brand name Sped.