1987 Proof Sovereign, slabbed by NGC PF70 ULTRA CAMEO 1987 Proof Sovereign, Elizabeth II. This example has been slabbed by NGC PF70 ULTRA CAMEO. sold 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?