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I have an abandoned shipwreck in the Falkland Islands under the name PROTECTOR III,( as given by Mr. Peter Crichton) which is depict in the margin of this MS. The other vessel is a junk

She is mentioned in Lloyds Register 1955/56:

Built by Wagstaff & Hatfield, Port Grenville, Nova Scotia, Canada most probably as a minesweeper.
Delivered June 1943.
Tonnage 163 gross, 62 net.Dim. 119.0 x 22.4ft.
Owned by Intercoastal Trading Co. Ltd. Port Stanley, Falkland Islands
Wood hulled.
Given as a Fishery Protection Ship.
At that time was she withdrawn from class at owners request. Official No 166895.

By searching around via Google the nearest minesweeper built by that yard is the MMS (Motor Mine Sweeper) 201, and used by the Royal Navy.
After the war sold.
Displacement 255 standard, 295 full load. Dim. 34.6 x 7.14 x 2.1ft.
Powered by a 500 hp oil engine, speed 11 knots.
Armament 1 - 20mm MG.
Crew 20.

Falkland Islands 2001  37p sgMS?

Auke Palmhof.

A minesweeper built in Nova Scotia in 1943, The 163-ton PROTECTOR (full name PROTECTOR III) arrived in Britain too late to sweep mines after World War 2. She was briefly employed in the East Anglian shell fishery before, in 1949, she heading south to the Falklands as part of a Falkland Islands Government-backed sea lion hunting project at Albemarle on West Falkland. A lack of seals condemned the enterprise to failure after just 3 seasons. Thereafter, she sporadically ran cargo around the islands, especially livestock and mutton carcasses. Eventually she became the property of Jack Davis who, in 1969, towed her around to his home at New Island, where he intended to “do her up”. Alas, before the year was out, Jack had passed away. To this day, PROTECTOR III remains on the beach in Tigre Harbour where he left her. In March 1986 the old ship was called upon for one last special duty when Mike Goodwin and Sandy Ward were married on the afterdeck and champagned on the bridge. The bride was given away by the late Bob Ferguson who 4 decades earlier had sailed aboard her as an able seaman.

(Falkland Islands 2019, £1.22, StG.?)
Internet.

Falkland Island 2021 £1.35 sg?, Scott.

The site given by the Falkland Islands gives her as the PROTECTOR 2 but the vessel depicted on this stamp is the PROTECTOR III.