Uruguay 1902 Postage Due Complete Set of Waterlow Archive File Copy Blocks. Scott J1-J5 var

The complete set from the Waterlow Archives in large multiples. Each block is headed File Copy in the upper margin, together with the Waterlow reference number, print date and numbers printed (not shown on the 1c). A total of 260 stamps, all with security punch. Some separation in places but overall intact. Evidence of staining and most gum removed, the result of water damage following the bombing of Waterlow's premises in London during WWII. A unique assembly.