Watch List notes:

Cayman Islands 1974 (ND 1981) P-9a PMG Gem UNC 65 EPQ 40 Dollars

This curious denomination was added to the series as a possible conversion tool from Cayman Islands dollars to either USD or British Pounds. Nevertheless, it was unpopular with the public, and most have been redeemed decades ago. However, this curious note is very popular with collectors today.