Terry, I don't know what to tell you except that it is very easy to do. I have shown numerous people the effect and it is easily noticed. Have you tried it yet? (btw, your example doesn't apply)
You must have a rare earth magnet; normal ones aren't strong enough /sq inch. I read about it years ago in Wiki and didn't believe it until I actually tried it. You don't have to move anything, just feel the effect of the resistance. Again, it is VERY easy to notice with a strong neo magnet and a large piece of silver such as a half dollar. Even if all you have is a pre65 dime, you should be able to feel it.
If your 50#er is a rare earth magnet, Try It.
eta: you can push a pre65 dime across flat glass with a 60# rare earth magnet. I just did it.