Forth Princess

Coming up for her centenary! Built 1921 as "Britannia I" for service at Southend. Thames service as "Thames Britannia" fron 1958. At Plymouth as "Plymouth Princess from 1992 till sold to Forth Boat Tours in 2018.
As "Britannia I": http://www.simplonpc.co.uk/Thames_Southend/Britannia_I-01_b.jpg

I thought the hull lines were familiar eddyw.

I must have seen her working from Southend beach near the pier or old Gasworks loading jetty.

The wheelhouse conversion is typical of several done by Bob Crews when he was involved with boats in Plymouth and Dartmouth. "My Queen," another ex Southend boat springs to mind.

Regards.