I remember that day well. Here's what it looked like: http://www.youtube.com/watch?v=jU1eplCrJFs And here is a series of stories with some good detail on the bombing: http://acorn.rgj.com/extra/harveys.php

Harveys used $2 chips on its blackjack tables back then. You can find those chips on pretty regularly. They also used brass cores, such as the one pictured, on their craps tables. Check Don Lueders' post from last night to see a beautiful brass core from Harveys, the $1,000 baccarat chip.