QUOTE(WCO @ Apr 18 2007, 11:25 PM) [snapback]318514[/snapback]
GHV, Oldman, Thank you for your opinions.
In any case it's a scarce coin. In Moshniagin & Dashevskiy article it said for all 3 dates that rarity is R1. And what R1 means there? And it is obvious that 3 dates have different rarity levels with 1928 found more often.
R1 means R1 and not R2 or R3

Seriously, this is the lowest rarity level in their publication (R1 through R5).
QUOTE(WCO @ Apr 18 2007, 11:25 PM) [snapback]318514[/snapback]
Schelokov lists 1930 20 Kopecks as R2 (less than 35 known).
Best regards,
WCO
I would not bet on the number here - all numbers are very generic and do not reflect actual situation.
In any event, the coin is nice and scarce but I don' t believe it should be valued much more than I have already suggested.
Thank you,