Malaya 1.1.1942 P-14 PMG Very Fine 25 50 Dollars (A/1 Prefix)
The first prefix is seen on this large format $50 from Malaya, issued during World War II. This type has gotten quite popular in recent years. This one faces up very nice, and would fit perfectly in a mid-level type set. An annotation is seen on the back, but it is off to the side and not distracting. PMG mentions "Annotation".