Great Britain Queen Elizabeth II 1997 20p Royal Golden Wedding, SG2011b.
A superb unmounted full original gum top marginal example with gold "Face value" completely omitted and the "Frame" partially omitted.
A block containing two vertical strips of four stamps (Rows 1-2) was discovered with the top two stamps both showing the (gold) face value omitted. The error was caused by the gold frame (and value) stopping at the base of the second stamp.
A lovely example of this important British Royalty error.
Accompanied with a 2010 British Philatelic Association Certificate of Authenticity.