1845, 2 1/2 Rp red / blue / black so called, . \"pigeon of Basle\" with white line under the dove, 2nd issue, unused without gum, fresh colours, four sides good to excellent margined, reverse strong thin, otherwise very fine, slightly distinct relief, expertized Buehler and photo expertize Marchand SBPV, Michel 15.000.- (Zumstein no. 8.2.02 d)