I thought it was odd that "they" would white out "Rickenbacker" off the truss rod cover, for the picture they used to promote "Adios"
Here is the picture:
Here is another picture from the same shoot:
The guitar is definitely a Rickenbacker 6 string.
While examining the picture, I was pretty sure it was not a recent picture and noticed it was taken on 5-20-08 and was credited to Steve Silvas.
I contacted Steve and he stated:
"Yes, I did this shoot while working as a designer for EMI Music Marketing. This shoot was for the "Meet Glen Campbell" album if I remember correctly. I'm not a pro photographer by trade, but I shot many photos for EMI/Capitol in those days, so I was assigned to the gig by our creative director, Tom Recchion.
We shot over an afternoon at a small private recording studio in Los Angeles that was built into a converted portion of a home, so the image was shot in the backyard. We did several different setups inside and a couple outside as well. I remember shooting in front of a wall of guitars, inside a recording booth of sorts and then a few setups outside on grass and near a small wooded area. Glen and his wife were so nice and patient as we went through all of the shots and setups. I remember him being quiet but friendly and with a smile on his face a lot of the time. We did several shots with a guitar and he would go in and out of a song or two as we shot."
I then watched the video that was done promoting "Meet Glen Campbell" and the first shot in that video pans the "wall of guitars" and the Rickenbacker is the first guitar in the first frame. Here is a screen grab:
I am pretty sure the Rickenbacker is a model 370. Glen actually played a model 360 in the early 60's, but it was a 12 string.