2 denar 1600 Sigismund III Vasa Lithuania Vilnius

an extremely rare coin with a modified date on the stamp - the second digit in the date ("0") has two tails (!),
giving the digits 6 and 9 at the same time (!),
while the last "0" has a tail added to turn it into " 9",
while date modifications in this vintage do occur,
this type of modification with two tails in the second digit is quite rare,
not recorded in catalogs and very rarely seen in trade