Bob Marley was seen performing in front of a Fender Silverface Twin Reverb amp during a live performance in 1973. However, looking at the photo, it appears that the cable from Marley’s guitar (gray-colored one) is going somewhere to the back, while there’s a different cable going into the amp.
We also see Peter Tosh next to Marley, so it’s possible that this amp was actually used by Tosh, and that Bob’s guitar cable went to the mixing board. It’s hard to tell for sure from the photo.
That is Peter Tosh next to Marley
We also see Junior Marvin next to Marley. That is not correct. That is Peter Tosh with Marley.