Steven Beeks, a 50-year-old man of no fixed abode, was found guilty by a jury at Caernarfon Crown Court in Wales on Thursday 14 February 2013.
Beeks worked as a street performer within Weymouth during the summer and autumn of 2011.
His convictions relate to offences that took place outside of Dorset.
Detective Constable Steve Dodge, of Weymouth CID, said: “I am taking the unusual step of releasing Steven Beeks’ image into the public domain in the belief that there may be other victims of crime that have yet to be identified by investigators.
“Beeks has travelled extensively throughout the country. He has been of no fixed abode for a number of years and has earned casual income as a street performer – a silver living statue.
“Beeks used an alias of ‘Silver Steve’ and we know he was living in the Weymouth area in the summer and autumn of 2011.
“I would encourage anyone who has concerns regarding Steven Beeks to contact Dorset Police on 101 – we treat all such calls very seriously and specialist staff are on hand to provide support.”
Witnesses and anyone with information should call Dorset Police on 101 quoting incident number 14:298. Alternatively, call the free and anonymous Crimestoppers line on 0800 555 111 where mobile phone tariffs may apply.