A VFNH example of the 1/2d green King George V from the 1927 Overprinted King George V Block Cypher Issue.
Gibbons values this at 11 pounds = approximately $18.81, based on an assumed premium of 100% for NH, which is fairly standard for stamps of this period. Our estimate of the net value is $8. The stamp offered here grades 75 as follows:
