Manufacturer: Thornton
Country of Manufacture: England
Type: F5100 Radiation
Date of Manufacture:  
Scales: (Front) 13 specialised
Scales: (Back) 6 specialised on rear of slide
Number of Scales: 19
Gauge Points:  
Slide Rule made from: Mahogany and Plastic
Cursor made from: Plastic
Cursor Lines: 1
Overall Length of Rule: 48.9 cm (slide extends beyond body)
Length of Scales: 40.9 cm max
Width: 8.8 cm
Depth: 1.5 cm
Acquired from: Madeleine Beck
Date: July 2003
Condition: Good
 Cardboard case. Good condition.
 9 page instruction booklet (English).