This is a letter dated 1900 from the Belfast Gunsmith Joseph Braddell & Son, sent to Captain the Hon. Ernest Cochrane R.N. of Redcastle - enquiring about a price for shooting on his land in Donegal ( most likely the Mintiaghs Estate at Inishowen).
It measures approx 5 1/8" x 8 1/8"
The item looks in good condition for its age with some original folds but please review the scanned images to best establish quality/condition prior to purchase.