French India. (Mauritius). 1879. Envelope addressed to Mauritius bearing French General Colonies Yvert 17, 5c green/azure (inperf pair) and Yvert 23, 25c blue tied by Inde/Pondichery date stamp '18th Aout', endorsed 'via Aden' with Mauritius receiver in blue on reverse 'Sept 20'. Lovely cover paying the 35c rate. Scarce.