1864, 10 kreuzer double eagle dark blue, vertical halved, left half in the pair with a complete stamp that denomination value on unique attractive collector's item piece, both pieces perfect, perfect perforations and colour intensely with a perfect centric mounted single circle postmark \"SZENTPETER 13 / 4\" (Mueller 2819 a, Ryan 1531, today Slovakia), signed A. Diena and F. Brunner as well photo expertize E. Diena and Dr. Ferchenbauer \" . Especially effective exquisite item! This large old Austria rarity! In the magnificent Monograph from Dr. Jerger still unknown! \"