Rietz slide rule
W.H. Smith Rietz (10-inch) slide rule by Blundell Harling Limited.
- Materials:
- plastic (unidentified)
- Object Number:
- 1998-441/1
- type:
- slide rule
- Image ©
- The Board of Trustees of the Science Museum
W.H. Smith Rietz (10-inch) slide rule by Blundell Harling Limited with plastic case
W.H. Smith Rietz (10-inch) slide rule by Blundell Harling Limited.
Plastic case, green, and instructions booklet for W.H. Smith Rietz (10-inch) slide rule by Blundell Harling Limited.