This is a Mauritius Registered Cover Front of an insured parcel.  It was sent to London on 6/4/1936.  It was sent to the Crown Agents, and it has several stamps.

It features 3 SG 224, the 2 Cents Brown Stamps, 2 SG 242, the 3 Cents Green, 1 SG 235a, the 20 Cents Blue, and 4 of the VERY RARE USED SG 236a, the 25 Cents DIE I.  These 4 alone are valued at L280 in the Stanley Gibbons Catalogue.

This is a VERY RARE genuine commercial usage!

This item is over $100 USD, so I will ship it using Priority Mail in the US, and Registered Mail overseas.  This is to ensure that it reaches you in a safe and timely manner, and includes tracking!