3 kreuzer Prussian blue with red inked Austrian experiment gumming, the only by one small part of issue use found, above due to scissors separation a little shortened perforated, right margin copy (!) entirely initially affixed on complete folded letter, clean turning into cancelled "145" - TRYBERG 14 February (1861), to Rottweil with reverse arrival 15.2, photo expertize Franz Stegmueller BPP "a rare, properly franked franked letter"