A rare - if not unique visitor to the Clyde.
She appears to be carrying out work at King George V dock in Glasgow.
Quite unusual in appearance, and made her way very slowly upriver this afternoon.
Forth Guardsman - Heading Upriver to Glasgow
Forth Guardsman - Passing Erskine
More images are available at - www.dougie-coull-photography.co.uk - and are also better resolution.