Cherrypicked this off eBay for just $6 plus shipping. This coin is in the Cherrypickers' Guide as a possible 1936/192? overdate with a possible 2 under the 3 as well as a part of a secondary 9 being present. With it in hand, I'm still not convinced. Maybe it's just because this is a late die state and may be missing something but I'm not sure this is truly an overdate. I find it very coincidental that the strongest portions of the supposed extra digits are very short, they are the same size, and they are actually parallel! The base of the "2" just looks like a die scratch to me. Maybe an early die state looks better but I'm not convinced this is or isn't an overdate. I found the die scratches around the T in LIBERTY and the mintmark location to be very good die markers to identify this coin.
This one looks good, I am also looking for one, nice pick up!
The consensus don't somewhat agree with the over date and some believe it is a die gouge, in the cherrypickers' guide forth edition, there were price given but the 5th edition it just listed as N/A, since it is hard to proof this over date, the demand is somehow questionable.