Thornton PIC 101/PC8



Front without slide


Length 30 cm
Number of scales 10
Country of origin UK
Country of manufacturing UK
Year of manufacturing 1955
Status of the slide rule Near mint
Material of the slide rule Celluloid on wood
Type of cursor Metal with glass
Status of the box Normal signs of use
Status of the manual Normal signs of use (English)
Collection number 5
Further comments Very nice slide rule. Special for this slide rule are the 2 differential goniometric scales. They allow a smart trick to calcualte sines and tangent using only these tiny scales.



 Last updated: 04-09-2009