Apologies if this is old news.
Awhile back I looked a live footage of Jim Reeves' performances and never could find one with the bassist playing the 4000 Blue Boy. Tonight I saw this on
Old Guitars in B&W on Facebook:
"Billy Grammer...notice the Brass TR Cover on his Gibson.
It was a Gibson option that had the player's name engraved on it.
Jim Reeve's Band behind him. That Ric Bass was Baby Blue, and I'll bet that gold guard Jazzmaster was too."
Unfortunately it's in black and white, but I've never heard of any other Ric owned by the bassist. Could very well be the one.