Look closely at the picture of the grommet - If you look at the inside of the grommet, you can see it's been messed with. Also, look at where the lugs meet the shell (picture w/the strainer) and you can clearly see a bit of white paint peeking out.
Might still be a cool old/new drum, but not at $600.00 and it's clearly not what the seller claims it is.