If you are talking about popular and cool electric guitars, it will be absurd to miss out on Jimmy Page's Gibson EDS-1275 double-neck guitar. Description from guitarsite.com. I searched for this on bing.com/images
Led Zeppelin is the 70s rockstar archetype. There are few such legendary bands. Here is another that was cut tragically short, but maintains a supremely legendary legacy. None of the remaining members went on to do work more special than the band.