A beautiful forgery from the era of the half-penny of Sigismund Augustus.
The coin is very good in workshop, so much so that it was robbed as an original. Moreover, the coin minted with the same stamps was described as an original in "Coins and bars of Lithuania" by Ivanauskas, with its degree of rarity described as -RRRR- (known to him only from the collection of A.M. Rackus, now in the museum collection).
Workmanship good, but not flawless. In the surrounds, errors such as LIDVA, an inverted N in MAGNI, or unconventional punctuation in the form of asterisks.