Seyler's coal calculator with instruction booklet

Made:
1934

Seyler's coal calculator with instruction booklet

Details

Category:
Mathematics
Object Number:
1997-863
Materials:
plastic
Measurements:
overall: 4 x 228 mm
type:
calculator and instruction booklet
credit:
Gas Research Centre, British Gas, Loughborough

Parts

Instruction booklet for Seyler's coal calculator

Instruction booklet for Seyler's coal calculator

Instruction booklet for Seyler's coal calculator

Measurements:
overall: 2 x 142 x 217 mm
Materials:
paper
Object Number:
1997-863 Pt1
type:
pamphlet