...the only chips listed in The Chip Rack of the same denomination/mold where both ROT and LOT varieties exist are:

Arizona Charlies ($5 N1346)
Bonanza, Reno ($5 N0204)
Slots-A-Fun ($1 N0208 6-suits)
Slots-A-Fun ($1 N2211 die4suit)
Slots-A-Fun ($5 N0210 6-suits)
Slots-A-Fun ($5 N2208 die4suit)
Sturgeon's, Lovelock ($5 N3368)

If anyone finds any others, please post here and/or e-mail me!