BERMUDA. Bermuda Monetary Authority. 20 Dollars, 1981-84. P-31c. PMG Superb Gem Uncirculated 67 EPQ. Watermark of Tuna fish. Dated January 2nd, 1981. A highly attractive Superb Gem 20 Dollar note, which sits atop PMGs pop report for the variety. PMG Pop 1/None Finer.