Yeah, it looks darn heavy. Must be high quality!
(3M copier commercial, 1971)

“See and compare them all at your 3M business products center.”

Here’s an enjoyable one. Part live-action, part animation, this commercial for 3M copiers aired in January of 1971 (and was likely produced in 1970).

Previously on 70s Spots: Nikon Camera ‘Puppies’ (1979)