Significance

Demonstrates the method in which drivers could communicate their availability.

Physical description

Wooden sign indicator panel with sliding cover used to show "Tramway Officers on Availability Duty" with countersunk screw holes, varnished timber with raised sides and yellow lettering. Used in depot office of SEC to show who was duty officer, with name written on paper and pasted in.

Inscriptions & markings

"Tramways Officers on Availability Duty"