1 / 2 Groschen black on bright gray green, horizontal pair, tied by black dual circuit cancel \"Brunswick 27 April 1867\", photo expertize Dr. Wilderbeek (2021) : \"the left stamp at the bottom full margins, the right stamp at the bottom cut into, otherwise three sided full- to having huge margins pair, above with extension the neighbour stamps, without further defects. \", Michel 1.300.-