Base section of "Early Morning Waiter" automatic tea-making machine, comprising a wooden plinth on which is mounted a gas burner and stand, a solenoid and gas valve in a glass box, a counterbalanced arm and teapot stand, together with an electric bell mounted underneath the baseplate, invented and built by Ron Grumble, London, 1930 Base section of "Early Morning Waiter" automatic tea-making machine 1930