1845, 2 1/2 Rp \"pigeon of Basle\" red / bright blue / black, first edition, unused with remains of original gum, the with enormous margins on all sides white margined stamp presented be apart from one slight oxidation of the blueprint in excellent condition with nice distinct relief printing, photo expertize Jean Claude Marchand SPBV (2023), Michel 18.000.- (Zumstein no. 8 a)