
These are both three-pickup Gibson ES-5 models – the earlier example isn’t technically a Switchmaster for the very obvious reason that it doesn’t have a switch.
Gibson introduced the three-pickup ES-5 in 1949 and described it as ‘the supreme electronic version of the famed Gibson L-5’. It’s widely accepted that the ES-5 was the first production guitar with three pickups. Gibson only made 22 examples that year and one of them was to become the instrument that T-Bone Walker used throughout the 1950s and 1960s.