1, 50 Fr. dark red brown with overprint "fortress Lorient" in the vertical pair with variety "missing overprint on of the lower stamp", in perfect condition mint never hinged, these pairs "with and without overprint" are by fortress Lorient very rare and at the denomination value to 1, 50 Fr. in spite of intensely research only in at present four copies known! The proof of these pieces leads now in addition to it, that these variety by Michel 2017 listed becomes, anyway a very rarees pair! Signed Tust BPP and photo expertize Lothar autumn VP (2016) : "the condition is perfect. Due to the small edition from only 1.800 stamps are these stamps rare. By of this stamp are me so far only four vertical such pairs with of this variety known. Stamps pairs with and without overprint are therefore extremely rare. ", Michel 5.000.-