This is a Newfoundland SG 1862-64 SG 19, the 5 Pence Light Chocolate Brown.
This one here is Mint with Original Gum, signed, and has a Hinge Remaining. It also has Full to Large Margins, 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!