This is a set of 2 NOS Briggs and Stratton GM Cadillac "C keyway" and "D GM keyway" key blanks for sale. The C key the ignition key has the cadalac logo one side and GM logo onthe other side the D key has the have  GM logo on both sides these are nrw old stock correct keys for the years listed above see pic's no refunds for cut keys make sure  these are the ones you need

These are correct for the 68 72 76 80 and 87-90 years that use the C and D keyway stamped on the blade of the key. If yours is stamped with the C or D these will work for you. Letter orientation on key blades may vary as there were a few batches of these keys.