Stephen Stills

This is his Martin signature guitar, and he is visible playing this guitar in this photo.

In this photo, Stills is visible playing cherry red D'Angelico New Yorker.

Excerpt from a 2012 interview by musicradar, "Today it's a Strat. I've got two '54 Strats that I play live. They're lighter and they're easier on you. When you're just starting out, they can hurt. They hurt your fingers. But when you work with them and get used to them, they're the best. They're true everywhere, they're not cumbersome."

In this source, you can see Stephen Stills using the Gretsch G6136-1958 Stephen Stills White Falcon.

This guitar was mentioned in Music Radar's interview with Stills.

"You know, I don't know specific years. This is not the kind of arcane shit that I remember. I remember cars. [Laughs] I had a Ferrari when we first got money in the Buffalo Springfield. I got a Martin D-45 and a Ferrari."

In this photo, taken at a CSNY concert in Wembley, 1974. Stills is visible playing Gibson Firebird I.

In this video, CSN are playing "Wooden Ships" , wih great closeup of Stills's Firebird VII at 3:34 minute mark.

This guitar went up for auction, according to this article, Stills once used and played this guitar.

In this photo, Stills is seen playing Gibson Les Paul Custom. Behind him is Sears amplifier, although model is unknown.

He talks about using a Super 400 on Wooden Ships

At Wembley in 1974, Stephen Stills use his Gibson SG.

In the interview he talks about using it on Wooden Ships.

He says fender gave him one to replace his Vibrolux

He says he uses one.

Stills can be seen playing a Fender Precision Bass in this photo.

According to Fishman's website Stills is using this preamp/pickup system on his acoustics.