1 kreuzer small breast shield, yellowish green, an actual special stamp with large size L16 (white perforation at the lower margin), distinctive screwhead impression with very clearly contours in the embossed field as well a right side being absent perforation whole at position 7\", tied by single circle postmark \"Darmstadt 30 1 72\" on piece, expertized HD, Barkemeyer and photo expertize Brugger BPP: \"the existing combination three manufacturing characteristics - large stamp format L16, SKA and FZL is extreme outstanding and places a breast shields rarity dar. Very good quality. \" - so surely unique!