"Marryat-Scott Lift Planning Rule"

Made:
1955 in Hounslow

"Marryat-Scott Lift Planning Rule", card ready reckoner, 5th edition c. 1954 (first issued 1936), with instruction sheet

Details

Category:
Mathematics
Object Number:
1990-719
Materials:
card
Measurements:
overall: 3 x 27 x 120 mm
type:
ready reckoner (engineering)
credit:
Science Museum (Great Britain)