Among the company's earliest products were a
card game called
The Lindy Flying Game, which was introduced in 1927, and a
board game called
Crash: The New Airplane Game which was introduced in 1928. Guillow died in 1951. His wife Gertrude expanded and modernized the company, until she retired in 1980. In 1953, the company introduced a line of mass produced, simple, inexpensive balsa gliders, packaged by high speed machinery. They sold well. In the 1990s, Guillow's acquired competitors including Tiger, Inc. of Los Angeles and Comet of Chicago. Tiger specialized in "promotional flying toys imprinted with company names and graphics" and Comet was a "direct competitor in balsa kits and gliders". In recent years, the company has converted to laser cutting of balsa parts, resulting in increased accuracy, making assembly easier. In 2011, sales were estimated at to $6-million per year. == Use in research ==