Jagiellonians, Sigismund I the Old (1506-1548), trojak 1539, mint Gdansk, KRZYZYKI/KROPKI.
A variety with the inscription PRVS in the rim and obverse punctuation in the form of dots on the obverse with three-leaf rosettes on the reverse.
Despite the hole at 5 o'clock, the coin retained its metallic tone
Silver, weight 2.60 grams, diameter 21.3 mm