Bob Welch

Bob Welch can be seen playing a Gibson RD Artist in the 1981 concert, 'Live at the Roxy', in which he appears with members of his former band, Fleetwood Mac. The RD Artist also features in the cover art for Bob's 1981 self titled album. The same year as the RD Artist hit the market.

The album cover can be found in the Wikipedia article https://en.wikipedia.org/wiki/Bob_Welch_(album)#/media/File:Bobwelch81.jpg

In the video, you can first see the guitar at 0:44

Bob Welch can be seen playing a white Gibson SG Custom in many photos and videos during his years with Fleetwood Mac, 1971-1974. In most photos and videos, he has the PAF pickup covers removed, presumably for a brighter tone.

Bob Welch frequently played a Gibson Les Paul Standard throughout his career, as evidenced by images from various performances.

Bob Welch frequently played a white Gibson Les Paul Custom, as seen in photos from the mid-1970s, including one featured by Dailymail.

Here Bob is pictured playing live with a Gibson EDS-1275 in the early 1970s.

In a 2010 interview with Jason Saulnier on YouTube, Bob Welch mentions using a Fender Stratocaster electric guitar around the 6:24 mark.

"In the 1980s, looking for new guitar sounds, Welch bought a Gibson Les Paul Studio Standard (an upscale version of the Studio) with a factory installed Roland synth controller. He also added a Kahler vibrola and Seymour Duncan pickups. He used this guitar extensively in the late 1980s with his own band Avenue M and also when he sat in with Fleetwood Mac." -Gruhn Guitars

Seen sometime around the 2:50 mark. Interesting how Bob Welch is seen playing a Telecaster given the endorsement deal he had with Gibson