The rarity scale used to estimate the number of surviving examples of a particular variety.
RARE
Rarity
R8+
R8
R8-
R7+
R7
R7-
R6+
R6
R6-
R5+
R5
R5-
Estimated Survivors
1
2
3
4 to 6
7 to 9
10 to 12
13 to 18
19 to 24
25 to 30
31 to 45
46 to 60
61 to 75
SCARCE
Rarity
R4+
R4
R4-
R3+
R3
R3-
Estimated Survivors
76 to 115
116 to 160
161 to 200
201 to 300
301 to 400
401 to 500
COMMON
Rarity
R2+
R2
R1+
R1
Estimated Survivors
501 to 750
750 to 1000
1001 to 1250
1250+
