Ready reckoner, c 1820.
- Made:
- circa 1820 in London
- maker:
- Robert Brettell Bate
Twelve inch wooden rule with tables for multiplication and the conversion of British measures and money, stamped "Bate London", c. 1820
Twelve inch wooden rule with tables for multiplication and the conversion of British measures and money, stamped "Bate London", c. 1820