An initial appeal was made after a man used counterfeit Bank of Ireland £50 notes to purchase low value goods from a number of shops at Monks Cross Shopping Park on February 8.
A North Yorkshire Police spokesman today said: "Enquiries have found that on the same day, the man also used a Bank of Ireland counterfeit £50 note in the York Minster Gift Shop to purchase a low value toy.
"Anyone who recognises the man pictured or has information which could assist the investigation is asked to contact police."
Email [email protected] or phone 101, select option 2 and ask to speak to Rachel Shaw.
Alternatively, Crimestoppers can be contacted anonymously on 0800 555 111.
Anyone passing on information in response to this appeal is asked to quote reference 12180025678.