Looks more like GLEN-HELEN (138873), 318grt, Crabtree, Gt. Yarmouth (165) 1918. Converted to a sand/gravel dredger in 1932 for South Wales Sand & Gravel Co Ltd, Swansea. She went to Dundee in 1960. Sold to White's at St. Davids for breaking up arriving 14.11.1966 from Dundee under her own power.
She is out in the estuary dredging sand - to be unloaded in the Camperdown Dock at Dundee. By this time Tay Sand Dundee was part of Smith Hood and Perth branch was sold to Davie Taylor so there was no cross operation of the vessels.
See my Gallery for more pics plus my working model of Glen Helen.