This beautiful watercolour survey of the harbour and port of Muskat, dates from December 1787. The manuscript shows soundings within the harbour, along with anchorage and a shipwreck. On the points either side of the entrance to the harbour fortifications are shown, as one might expect of such an important seaport at the time. Commanding the cove are a number of significant fortifications, including a watchtower and the town of Muskat itself.
The survey includes a large 'view' of the harbour, as seen from 'Fisherman's Rock' at 15 fathoms. The major fortifications and the town are again shown, as are a number of traditional vessels, clearly indicating the importance of the port at this time. In the lower right of the survey is a small view of Muskat Island, W5 Leags.