I recently picked up a set of altecs with the black 416-8a woofer and 807 horn driver with the 801 network. These seem to be a7 components from an early 70’s A7 style. I’m unsure because the cabinet has a date in pencil of 03-30-1963 and is an oak veneer. Possibly early aftermarket cab? I would appreciate any thoughts on what these are. Thanks