I was doing VAM research and came across a Rarity scale of R1, R2, R3...R7. for top 100 vams, but could find which end of the scale is the rareist and which is least rare. Would someone give me the correct direction of scale?
An R=1 is the least rare on the scale. For different denominations, such as Cohen the numbers change slightly.
Take the rarity number for VAM's with a grain of salt. The assigned rarity number is LVA's best estimate at the time of discovery. These estimates that are part of each listing are rarely if ever updated as more (or less) examples surface. A better gauge of rarity would be the SSDC population report.
Rarity scales generally operate on the basis of higher number = more rare. An exception is the Bowers Universal Rarity Scale, which goes the other way so it can literally assign a rarity number to anything that can be counted.