By the mid/late 1970s most Greco Gibson like models were being made with set necks and openilikemenrent headstock design (more like a Guild headstock design) that had a Greco logo with equally sized letters.
By the mid/late 1970s most Greco Gibson like models were being made with set necks and open book Gibson headstock designs. Some other Greco Gibson like models from the 1970s had a different headstock design (more like a Guild headstock design) that had a Greco logo with equally sized letters.