Unused Air Leakage Test Report form, issued by London Transport Executive, 1955.

• Physical description

  Dimensions

  Attribute	Value
  Height	160mm
  Width	100Mm

  Item content

  Attribute	Value
  Object title	Air leakage tests

• People involved

  Role	Person(s) involved
  Printer	LTE, 1955
  Publisher	London Transport Executive,