UNITED ARAB EMIRATES. Sharjah. Silvered Uniface Riyal Reverse Trial, AH 1389 (1970) (1970). NGC PROOF-61 Cameo. cf. KM-2. Mona Lisa. This trial strike exhibits frosty devices and reflective fields on the design side with mottled cobalt toning. The non-design side is lightly marked and stamped "MET. / GORI & ZUCCHI".