Mauritius 1951 "air letter" (aerogramme), on academic business, to NZ, franked GVI 35c Govt House, canc 2 "REDUIT" cds 13 NO 51. B/s "ROSE HILL" cds next day with Wellington NZ cds on front (readdressed in NZ). Remains of 2 printed labels "Air Department / Envelope Economy Stickers". Fine.