ruler

1950s

13170_24725_rulers4

In this clip, a boy measures various objects in a kitchen as his father…

1950s

13170_24725_rulers5

In this clip, a boy measures things using the length of his hand and…

1940s

13170_41009_drafting1

This clip shows two boys looking at a model o a house as well as its…

1940s

13170_41009_drafting2

In this clip, two boys work on a model of a house and a blueprint, here…

1940s

13170_41009_drafting3

In this clip, two boys work on adding a component to a model of a house…

1950s

13170_24725_rulers1

This clip shows a little boy have his height measured, something his…

1950s

13170_24725_rulers2

In this clip, a father explains to his son how measurements work,…

1950s

13170_24725_rulers3

In this clip, a father shows his son a yardstick, then they practice…

1950s

13169_10683_range_production

Ohio: Begins with a woman removing a pie from the oven. Quick shots of…

1960s

13152_19760_mean_teacher

Middle aged teacher in 1960s clothes and cat eye glasses stands at the…

1960s

8716_slide_rule

Hands operating and demonstrating the use of a slide rule.