This is a Newfoundland SG 1862-64 SG 19, the 5 Pence Deep Chocolate Brown.  This is a lighter shade!

This one here is Mint Never Hinged.  It also has margins all around, and is in Very Fine Condition. 

A truly beautiful little stamp for a Newfoundland collection!

It's valued at L100+ in the Stanley Gibbons Catalogue!