I've had these two chips for several years and always thought they looked different.
One inlay is a darker brown and a more pronounced black border around Bally's.
Recently I utilized my UV light and one has "PAULSON" across the inlay. The other chip doesn't and has a darker checkerboard pattern.
I've lost my TCR during my move so I can't look it up.
Both chips are the same size, between 47mm and 48mm across.