Found 17 June 1879, Tayport Harbour, Fife.
In a bottle:
In latitude 58.20 N.; in longitude 1.20 E. Three days without water; ship making 6 inches per hour; cargo shifted; intends to leave the ship the first opportunity. Mary Ann, Portsoy. John Cumming, mate. — 25/5/79.
The given coordinates suggest the Mary Ann was around 150 miles east of its home port of Portsoy.
[Dundee Evening Telegraph, 18 June 1879]