Signal scale plan, acetate copy, numbered Sheet No. CW3, Circle and Widened lines, Edgware Road last dated revision 20th June 1974.

• Physical description

  Dimensions

  Attribute	Value
  Scale	1:480

• People involved

  Role	Person(s) involved
  Commissioner	London Transport, 1974

• Associated companies, people and places

  Company

  Attribute	Value
  Line	Metropolitan,