Steel yard balance swing customers On her right a group

On her right a group of men in armour appear to be fleeing the scene

5th July 1964

with a few notable exceptions

his hat and wig removed

One of the ladies has evidently been called away from a formal evening function to attend to her duty

Steel yard balance swing customers On her right a groupFront view of a medical instrument intended to correct deformities or irregularities in human bones and muscles. The device used gravity by suspending a patient (most likely a child) from the balance arms. The drawing includes details of weights and suspension tethers. Figure from the paper 'The description and uses of the steel yard balance swing', by Timothy Sheldrake, Philosophical Transactions of the Royal Society, vol. 42 1742 1743, pp. 20 25.