NEW ELTHAM, LONDON, S.E.9 
357 
FULLY DESCRIPTIVE LITERATURE ON REQUEST 
Quote Stanley's ‘A' Catalogue 
SLIDE RULES 
“ FABER CASTELL ” SLIDE RULES 
These slide rules, graduated with extreme care, give results which satisfy all require 
ments. Timbers used for the laminated stocks are subjected to scientific seasoning. Brass 
inserts give added strength. 
GEROPLAST is a resilient, non-inflammable plastic; it is washable and particularly 
resistant to temperature changes. 
Faber Castell Slide Rules are supplied in case with standard cursor and instruction 
booklet. 
10 in. WOOD BASED 
A889I “Business” 10 in. (Pattern 1/22) 
A8893 
A8894 
Scales 
CD, Complementary CF, DF, 
A8892 “ Darmstadt ” 10 in. (Pattern I /54) 
Basic 
Reciprocal, Mantissa, £ conversion, 
Log-Log, and marks for international 
variations (weights and measures). 
Mantissa, Cubing, Squares, Reciprocal, 
CD, Pythagorian, Trigonometric, 
Log-Log. 
A, B, C, D. 
Cubing, Squares, Reciprocal, CD, 
Mantissa, Trigonometric. 
A8895 “Engineers” 10 in. (Pattern 1/92)... Log-Log, Squares, Reciprocal, CD, 
Cubing, Mantissa, Trigonometric. 
A8896 “Electro” 10 in. (Pattern 1/98) ... Log-Log, Squares, Reciprocal, CD, 
Cubing, Mantissa, Trigonometric, Volt 
age, drop in electrical circuits, 
efficiency of dynamos and motors. 
Basic ” 
Rietz ” 
10 in. (Pattern 1/60) 
10 in. (Pattern 1/87) 
20 in. WOOD BASED 
Scales 
A890I “ Darmstadt ” 20 in. (Pattern 4/54) Mantissa, Cubing, Squares, Reciprocal, 
CD, Pythagorian, Trigonometric, Log- 
Log. 
A8902 “ Rietz ” 20 in. (Pattern 4/87) ... Cubing, Squares, Reciprocal, CD, 
Mantissa, Trigonometric. 
A8903 “ Electro ” 20 in. (Pattern 4/98) ... Log-Log, Squares, Reciprocal, CD, 
Cubing, Mantissa, Trigonometri- 
Voltage drop in electrical circuits, 
efficiency of dynamos and motors.