Original vintage circa 1976 heat sink for an Apple-1 Computer, evidently a prototype or modified version as the fins are shorter than those of a stock Apple-1 heat sink. The component measures 1.75″ x 1.75″ x .75″. In fine condition. This heat sink resided on the ‘Apple Garage’ property for many years before being given by Steve Jobs to its current owner approximately 30 years ago; accompanied by a provenance statement.