109.7 metres long, perpendicular to perpendicular, 360.0 ft., speed of ? knots. Built for 'The Clan Line of Steamers Limited' ('Clan'), of Glasgow. But per Miramar, for Sir Charles W. Cayzer, of Glasgow.
Miramar also indicate that in 1913 the vessel was registered to 'The Clan Line of Steamers Limited' ('Clan'), also of Glasgow.
Now Clan had, I understand, become 'Cayzer, Irvine & Company, Limited' in 1907.
So I believe that the vessel would have been registered to 'Cayzer, Irvine & Company, Limited', when transferred in 1913.
It is likely that the vessel was requisitioned by the British Government for service during WW1.
What we do know is that in early 1917, Clan Shaw, defensively armed, was returning from Chittagong & Calcutta to Dundee via London, with a cargo of jute.
On Jan. 22, 1917, UC-29, Oberleutnant zur See Ernst Rosenow in command, laid mines in the Firth of Tay & on the next day, i.e. on Jan. 23, 1917, Clan Shaw hit one of those mines. At 56.27N/02.38W, 8 miles NE of St. Andrews. Two lives were lost.
The vessel was beached at the mouth of the River Tay but became a total loss