A very rare coin, struck with a mirror stamp for the Free City of Danzig, in a very low mintage for collecting purposes. WMG mirrored coins are equivalent, low mintage collector coins of the 2nd Republic of Poland - called SAMPLE. Beautiful piece, DELICIOUS patina, old raw NGC grading from over 15 years ago, very high grading for those years. Coin difficult to photograph. Mirror stamp presentation much better in person than in photos.