This is a new, reproduction Delco Ignition Coil, Part # 1115107 for use in 1957 thru 1962 FUEL-INJECTED Corvettes.
These coils are brand new licensed GM restoration parts. They have the raised lettering on the case and the Delco Remy logo on the top. These are a welcome addition to vehicles with either the wrong part or a "just plain tired" coil.
Many other GM vehicles use this coil, too. Check your books!