I would venture a guess its the highest graded known.
This variety may become more popular if its shifted to the front of Charlton in 2012, and $1500 is likely a steal. My guess one day it'll sell for $5000-$10,000.
I'm trying to find any circulated examples I can, but this variety is very difficult to nail down, as pictures on
ebay tend to be too crappy to identify the loop in the 9, or even the die cracks.