We had keys like this which where for old roller door locks but the keys we had didn't have the cut out in the middle, also we had simmilar keys for generators and forklifts but they where single sided keys.
Ilco catalog indicates it is in the misellaneous grouping. It may be for a light switch or other similar power equipment, including forklifts, compactors, etc.
Nothing is foolproof to a talented fool. Wisdom is not just in determining how to do something, but also includes determining whether it should be done at all.
raimundo wrote:almost like a light switch key except that this one has a bit of curve in it, I think its for the paper towel rack in a public restroom.