- $40.00 GBP post office Unknown Resistance Box by Reynold & Branson of leeds
- $70.00 GBP Large Tinsley & Co Lab Potentiometer 3387B - Mahogany Case
- $80.00 GBP VERY RARE 1952 NON-REACTIVE RESISTANCE BOX SULLIVAN & GRIFFITHS DUAL DIAL 1kOHM
- $70.00 GBP Large Tinsley & Co Lab Potentiometer 3387B - Excellent Condition - Mahogany Case
- $50.00 GBP POST OFFICE BOX, Wheatstone Bridge Resistors, 1940, brass & mahogany, excellent.