Those are beauties TF.
Just about everything I fish for hits an inline spinner. If I packed survival kits with fishing lures, you bet that one would be included.
Musky and northern pike would likely smack both of those cast or trolled. It wouldn't surprise me if a big ol' bass took a whack at one of them either.
One of my favorite lures for muddy, turbid water is a jet black inline spinner (body, treble, and blade). Works well on cloudy days with a variety of water conditions too.