unused Block Larger Than four  Fourth Printing, May 1941: Deep red-purple and light ultramarine on grey blue, line perf. 14.2, a magnificent upper right corner block of twelve [9-12, 20-24, 33-36, 45-48] with full sheet margins, showing HPF 22 (lower right scroll with broken tail). An exceptionally rare line perf. multiple in fine condition. Photo
unused Block Larger Than four Fourth Printing, May 1941: Deep red-purple and light ultramarine on grey blue, line perf. 14.2, a magnificent upper right corner block of twelve [9-12, 20-24, 33-36, 45-48] with full sheet margins, showing HPF 22 (lower right scroll with broken tail). An exceptionally rare line perf. multiple in fine condition. Photo

Details
unused Block Larger Than four Fourth Printing, May 1941: Deep red-purple and light ultramarine on grey blue, line perf. 14.2, a magnificent upper right corner block of twelve [9-12, 20-24, 33-36, 45-48] with full sheet margins, showing HPF 22 (lower right scroll with broken tail). An exceptionally rare line perf. multiple in fine condition. Photo