TCR #10 is the 10th and latest edition of "The Chip Rack" by Allan Myers, Michael Knapp and Ernest Wheelden. It lists every known Nevada casino chip. Their rating system, listing dollar value,is below. Hope this helps.

A 1-2
B 3-4
C 5-9
D 10-14
E 15-19
F 20-24
G 25-29
H 30-39
I 40-49
J 50-59
K 60-74
L 75-99
M 100-124
N 125-149
O 150-174
P 175-199
Q 200-249
R 250-299
S 300-349
T 350-399 etc.