A very nice piece.
An interesting version of Magnus not described in Revolinsky.
Obverse: image supported by angels, below it initials AM, in the rim legend:
*MEMORIAL OF 500 YRS OF EXISTENCE OF MIRACULOUS. IMAGE OF MOTHER OF GOD KROLOW. SKIES ON JAS. GORA IN CZĘSTOCH. 1882;
Reverse: */THREE HUNDRED YEARS IN JERUSALEM/FIVE HUNDRED IN TSAROGROD/ I WAS AN ALL-POWERFUL LADY/ON EARTH AND WATER/FIVE HUNDRED IN BELZ CASTLE/ I WAS A GUARDIAN/FIVE HUNDRED BRIGHT MOUNTAIN/THE QUEEN OF HEAVEN HONORS ME/18*82;
Brass, diameter 35 mm.