These locks were used on Reff Furniture cabinets and pedestals between 1983 and 1992. Reff was then bought out by Westinghouse and put under the Knoll umbrella - Knoll still has the "Reff Profile" line of furniture but they use the current Knoll K001 - K250 series. The furniture that uses these locks will most likely just have "Reff" on any identifying label or plate and not "Knoll Reff". These locks and keys are manufactured by DOM.