BHUTAN. Royal Monetary Authority of Bhutan. 100 Ngultrum, 2006. P-32sp. Specimen Proof. PMG Gem Uncirculated 66 EPQ.Watermark of King J.D. Wangchick. An attractive Gem example of this Specimen Proof 100 Ngultrum note, which is seen with penned "Proof No 501/1" at bottom left.