The "bed photo" is a Getty image. When I searched for it before I failed to realize there were multiple pages of search results.
Getty says "Paul Kantner sits up in bed and plays an acoustic guitar, his daughter China beside him, in a rather messy bedroom.'
Robert Ressmeyer is credited. He started photographing Jefferson Airplane etc. in 1975
I think we're ok posting here because Getty's policy says "Newspapers and magazines (except for covers), editorial broadcasts, documentaries, non-commercial websites, blogs and social media posts illustrating matters of public interest" and LTG is non-commercial, for sure.
Also note that there are enough Getty images with Paul and a Guild 12 that someone could gather them a new thread and discuss the ID of the guitar. But that won't be me.