Mauritius Stamps 1862 Letter to Bordeaux; 4d rose (SG48; B53 pmk) - see descr.
This is a transverse oval with 3 bars above and below the identifier [B53] - Robson Lowe Type [J] cancellation identifier [C16]. from Port Louis (Mauritius) to Bordeaux, via Suez and Marseille. This was probably added at Suez.