It might be the IECO cover, although the "Pinto" logo was on the right hand top of the cover (as viewed from the driver's seat). The IECO cover had fins on top and was painted with a black crinkle finish.
SPEARCO also made a cover but it did not have the "Pinto" logo. It also had a finned top but was not painted.
This is per a couple old catalogs I have.