This page shows the classic early 60s UK bass amp, the T60 This was one of the earliest solid state amplifier models.
The VOX T.60 Bass model amplifier is the first of its kind to emerge in Europe. With 60 watts output maximum British rating, the console which houses the controls separately and weighs only 14 ibs, drives a single cabinet housing two fifteen inch loudspeakers for 30 watts, or two similar cabinets for full sixty watt performance. The tone is free from distortion and with transistors, instant power from switch-on plus greater reliability are two important features. Featured by Jet Harris and other foremost Bass Guitarist.
This page also mentions microphones, straps, plectra and tremolo arms.