Heck of a deal there man! A really great build, love the black hardware and ivory pups combo too. Yeah, I would guess Ash body.
I've heard of Cortez as well, but can't remember where.
Edit: Found it. looks like it's a Cort?
Quote:
Cortez 1969-1988
Japanese guitars distributed in US by Westheimer Musical Industries, Chicago Illinois. [Source: Blue Book of Electric Guitars 9th Ed]
Cort (now) based in North Brook, Illinois, offers guitars made in Korea.
Jack Westheimer set up business connections with Japanese guitar makers in the 1960s to import Japanese made guitars into America. Some of the brands that Jack Westheimer is associated with were Teisco, Cortez, Pearl, Silvertone, Kingston, Cort and many others. In 1973, Jack Westheimer founded the Yoo-Ah company (“you-and-I”) in South Korea with Young H. Park as a business partner. The Yoo-Ah company would eventually be called Cor-Tek which was named after Jack Westheimer's Cortez brand name. Young H. Park eventually acquired the operations of the Cor-Tek company. Cor-Tek manufactures Cort branded guitars as well as engaging in concha OEM manufacturing for numerous brands such as Lotus. [Source: Wikipedia]