Coins of Polish Kingdom - catalog with values
Kingdom of Poland (1025-1569)
Groschen=10 denar
Władysław II Jagiełło (1386-1434)

Polgrosz (1/2 groschen) no date
silver
REGIS POLONIE / Crown
MONE WLADIS / Eagle
~ 40-60 USD
Wladislaw III of Varna (Władysław Warneńczyk) (1434-1444)

denar no date
Crown
Eagle
billon
~ 10-20 USD
Casimir IV Andrew Jagiellon (Kazimierz IV Andrzej Jagiellończyk) (1446-1492)

Polgrosz (1/2 groschen) no date
silver
REGIS POLONIE / Crown
MONETA KAZIMIRI / Eagle
~ 10-20 USD

denar no date
Crown
Eagle
billon
~ 40-60 USD
John I Albert (Jan I Olbracht) (1492-1501)

Polgrosz (1/2 groschen) no date
silver
REGIS POLONIE / Crown
MONETA I ALBERTI / Eagle
~ 10-20 USD

denar no date
billon
Crown
Eagle
~ 10-20 USD
Alexander I Jagiellon (Aleksander Jagiellończyk) (1501-1506)

Polgrosz (1/2 groschen) no date
silver
MONETA REGIS POLONIE / Crown
ALEXANDER DEI S REX / Eagle
~ 10-20 USD
Sigismund I the Old (Zygmunt Stary) (1506-1548)

1 groschen 1528 (1526-1548)
1526, 1527, 1528, 1529, 1545, 1546, 1547, 1548
silver
SIGISMVND PRIM REX POLONIE / Crown
MONETA REGNI POLONIE 1528 / Eagle
~ 20-30 USD

Polgrosz (1/2 groschen) 1506 (1506-1511)
1506, 1507, 1508, 1509, 1510, 1511
silver
REGIS POLONIE 1506 / Crown
MONETA SIGISMVNDI / Eagle
~ 10-20 USD

denar no date
billon
Crown
Eagle
~ 40-60 USD
Next - coins of Polish–Lithuanian Commonwealth
Other Polish coins
Polish–Lithuanian Commonwealth (1569-1795)
Grand Duchy of Warsaw (1807–1815)
People's Republic commemorative coins
Costs of Polish Kingdom coins in this catalog approximate and indicated specifically for the coin shown in the picture.
I do not buy or sell coins - this is just a catalog.