1951 Proof Threepence, George VI, scarce 1951 Proof Threepence, George VI, reverse, Thrift plant, mint state, scarce. Date: 1951 Price: £40 ENQUIRY FORM To enquire about this Coin please use the form below Your Name* Your Email* Your Message How did you find us? Please selectPublicationWord of mouthSearch engineOther Human test: Which is bigger, 2 or 8?