This is whizzed, right?
All I know about whizzing is that people used to do it a lot and it hardly happens anymore. I'm not sure i've ever seen a whizzed coin... but this is whizzed, right? Or just plain counterfeit?
This is HK-302, the official medal for the Louisiana Purchase Exposition, in brass. The second picture is how it's supposed to look. The first one, no so much.
FWIW, the weights are basically the same for the two pieces: 16.3 grams for the bad one, 16.7 grams for the good one.
All pictures were taken in a row, with the same lighting. This isn't a matter of enlarging a grainy picture. The medals really do look like that.