Standard Chartered Bank, group of 4, consisting of $10 (2), $20 and $50, 1.1.1993, matching Aand AAprefix notes with identical numbers, the first $10 AA666633, the rest A666633,(Pick 284a to 286a), graded PMG 67EPQ, 68EPQ, 67EPQ and 66EPQ respectively and a choice high grade group!