Result from filtering 500 ringgit of 1 sen

Conclusion from the RM500 of 1 sen after filtering it for 4 days non-stop :
1970 1 sen - 0.024 percent chance to find 1.
1968 1 sen - 0.004 percent chance to find 1.
1st series 1 sen UNC/BU condition - 0.56 percent chance to find 1.
1st Series 1 sen (All condition ) - 3.16 percent chance to find 1.
1 sen too badly damage or rust - estimate between 6 to 8 percent.
Time to complete separating the 1st series and 2nd series - 5 days ( from morning to night , only go out when hungry.)
Time to complete for error coin ( check 1 by 1 ) - need atleast 50 days base on my experience , did not do it because for last 3 week been inspecting 1 sen . Mental at limit and eye very painful .
Final review : Don't do this if your mental is not strong. have to be very patient.