Polar bear souvenir sheet, variety "unperforated" with additional plate flaw I "line outside of the vignette image over the head of the bears", mint never hinged, in perfect condition, photo expertize Krischke and photo expertize autumn VP (2015) : "tiny small restrictions reverse, the but typically for this issue are, are insignificant and lie in the broad-mindedness. Therefore is the condition perfect. . . . . Extremely rare. ", Michel 4.000.-