Both the gray and black acoustic guitars are Weir designed.
They're made by Alverez Guitars as part of their Yairi series; specifically
the Alverez-Yairi Virtuoso. The Bob Weir designed model is the WY-1.
Pictured here is the newer black version. You may recognize the
gray one from the later days of the Dead.
Info
regarding Bobby's new Dobro
Here's
the scoop on his black hollow-body.
Here
is info on his white Genesis guitars.
Here
is info on his George Benson signature guitar.
check out Modulus'
site