1906 (7 Nov) unfranked cover to Boghe with SENEGAL St. LOUIS despatch cds, taxed on arrival with blue manuscript ”0,60” and franked ‘Faidherbe’ 10c. and ‘Palms’ 50c. cancelled with blue triangular framed ‘T’ handstamp, BOGHE MAURITANIE cds at left, very rare commercial usage of Mauritania provisional postage dues. Ex. Grabowski.