steelyard
Noun
Meaning
A form of balance in which the body to be weighed is suspended from the shorter arm of a lever, which turns on a fulcrum, and a counterpoise is caused to slide upon the longer arm to produce equilibrium, its place upon this arm (which is notched or graduated) indicating the weight; a Roman balance; -- very commonly used also in the plural form, steelyards.
Source: Webster's dictionarySynonyms
Hypernyms
Examples
However, some of Holbein's other portraits of Steelyard merchants, for example that of Derich Born, concentrate on the naturalness of the face.
The first reference to it as the Steelyard (der Stahlhof) occurs in 1422.
Wilson, 184. For the guildhall of the Steelyard Holbein painted two monumental allegories, "The Triumph of Wealth" and "The Triumph of Poverty", both now lost.