Poor pic but best I could do in a hurry

Left chip. Inlay fluoresces brightly. No other markings.

Middle chips. Only reaction is the 'BJ' code

Right chip. Reaction on BJ code, dashes, $1's and edge spots.

Left chips are very old. Middle chips are relatively new. Right hand are almost uncirc.

Out of 200 chips, 170 of the one on the left, 5 of the middle, 25 of the right.

For info: No reaction at all on any $5's