Rarity Scales, A GRAPHICAL APPROACH

by Dan Gosling, Edmonton Numismatic Society

Over the years different scales have been used to describe the rarity of estimated, or known surviving examples. These graphs attempt to present this information in a format that should more easily facilitate comparisons between different scales*.

• UP TO COMMON END OF RANGE
• UP TO SCARCE AREA OF RANGE
• UP TO RARE SECTION OF RANGE
• LOGARITHM SCALE

UP TO COMMON END OF RANGE

UP TO SCARCE AREA OF RANGE

UP TO RARE SECTION OF RANGE

LOGARITHM SCALE

*source: Q. David Bowers, Coins & Collectors (The Numismatist, June 1992) pages 790-794; Q. David Bowers, Coins & Collectors (The Numismatist October 1992) pages 1359-1360, Letters, (The Numismatist October 1992) pages 1432-1434.