This is a 1895-1898 Zanzibar Provisional S.G. 39H, the '2 1/2' TYPE 4 in RED on 2 Annas Blue. 

What makes this stamp special is the fact that it has an inverted 'q' instead of a 'b' in Zanzibar.  On top of that, it is signed with an expert handstamp.  

This absolutely stunning stamp is in Very Fine Mint Never Hinged Condition.  It is valued at L1300 in the Stanley Gibbons catalog.

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!