Bird's brass standard scale, made about the year 1750, engraved "Royal Society 42", 92 7/ 16"x17/32"x9/32". Divided in inches and tenths from -1 to 90, from 10 to -0.1, a scale is divided in 100 parts. Rest on mahogany bed with cover the whole in wood case
- Weighing & Measuring
- Object Number:
- linear measure standard
- The Royal Society
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