Tug belonging to May Gurney moored at their yard in Whitlingham Reach of River Yare on Eastern outskirts of Norwich. Built in about 1921 by Hayes at Stony Stratford on Grand Union Canal and bought by May Gurney in 1980 from C W Beckett & Co who used it for lighterage work on River Thames. Scrapped late 1990's or 2000.
See https://www.facebook.com/liquidhighway/posts/pigmylaunch-tugbuilt-about-1921-50bhp-kromhout-diesel-engine19-owners-james-jone/10153857214870186/ for more info and some other photos.