Pic DC 7
Greaves & Son
Sovereign scale with equal arms and pressed platters at
both ends of the beam. It was pre-loaded to weigh the half-sovereign, and
a disc-shaped weight was added to the weight platter to weigh a sovereign.
This weight could also be used to test the accuracy of the scale by
placing it in the coin platter, as the weight was almost the same diameter
as a half-sovereign. The slide on this design was unusual in having
vernier graduations for fractions of a penny - a more accurate method of
reading than simple division. The balance was contained in a slender
maroon covered leather case.