Watch List notes:

United Arab Emirates, Umm al-Qawain, Proof Set AH1389 /1970, gold proof 200-Riyals, 100-Riyals, 50-Riyals, 25-Riyals, silver proof 10-Riyals, 5-Riyals, 2-Riyals, Riyal, in original yellow presentation box, with mint certificate #116 (KM PS3, containing KM 1-4, 6-9), with mirror-like fields and frosted designs, the silver coins attractively toned, all proof uncirculated, many coins with very low mintage, extremely rare as a set in this condition (8).
Only 5000 sets issued.
Estimate: £8000 - £10000