| Manufacturer | Sterling |
Sterling Pocket Metric Converter, slide rule in a plastic slipcase with instruction sheet. The front center piece has marks for distance, weight, and volume. The back of the center piece has a temperature converter.
Victoria Tool Library
http://victoriatoollibrary.org/
750 Fairfield Roadhttp://victoriatoollibrary.org/
Victoria, BC, V8W 2H1
Canada