Date stamp postcard March 30, 1912. Am interested in the name of both vessels. Just based on the composition of her name on the bow the left vessel might be Duchess of York. In that case more info here: http://www.paddlesteamers.info/DuchessofCornwall-York.htm
Photographed 16 June1987 : Portsmouth
Seen at the Sealink lay-up berth near the harbour station, dressed overall in honour of (HMS) Warrior which was arriving from Hartlepool for exhibition as a museum ship.