1966 4c Red Queen Elizabeth II large mint specialised study, mostly mounted on pages and largely comprising positional pieces, covering most of the listed plate varieties, with many perf pip and plate number blocks, also the different paper types, and all with copious notes identifying the various plates. Also a used range of the 5c on 4c booklet stamp with plate varieties. An exceptional lot that would form a significant basis for a specialised exhibit of this interesting issue. All very fine to superb and virtually all MUH (approx 2500)