So you are interested in the history of Kirby vacuums….
The Kirby Company is a subsidiary of the Scott Fetzer Company which is part of Berkshire Hathaway. It is based in Cleveland, Ohio and has been a long-time producer of vacuum cleaners and accessories.
Kirby vacuum cleaners have what many refer to as a “retro-look” to them. The vacuums have a great reputation for their power, versatility, and a long-life.
The only downside may be their expensive price compared to more mainstream vacuum cleaners.