Well they did have a couple of old Cambridge Instruments ones, with brass tops and nice shiny Copper horns. From the leaks and loose bits though, they had already drunk more than was good for them!
They were definitely pre-1948
* too. No model numbers or current rating markings either. That's why I picked out the dull looking Tinsley.
EDIT:
*For the casual reader, before 1948 the 'International Ohm' definition was artifact based, based on a Mercury column of standard area / length and mass, at 0'C. After 1948, the 'Absolute Ohm' was adopted. Hence OHMS (ABS) on the Tinsley unit.