1950s Caterpillar safety film for grader and bulldozer operators. 19:24 video.
https://www.youtube.com/watch?v=CGDi5RAPXwI
Previously:
https://www.homemadetools.net/forum/...842#post133525
https://www.homemadetools.net/forum/...928#post167894
https://www.homemadetools.net/forum/...8999#post88424
https://www.homemadetools.net/forum/...5851#post82647
https://www.homemadetools.net/forum/...4907#post80809
