This is a Mauritius Pre Stamp Full Letter.  It was sent from Calcutta to Port Louis, Mauritius on 3/16/1849.  It was sent between merchants discussing the intended sales of rice and grain products.

What makes this letter so special is not merely its age and condition, but the postal markings it has.  It was sent by "PRINCESS ROYAL" and has that marking in black.  It also has the Mauritius Receiver in Black, dated April 7.

Please take care as this cover, while it is in fantastic shape, is still over 100 years old.

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!