ZAMBIA 1966 (VARIETY) 3D WHO HEADQUARTERS PLATE BLOCK WITH PERF SHIFT
3d Inauguration of WHO Headquarters imprint/plate 1B–1B–1B block x 15 with perforation shift causing the design to bleed off the left side. Unique positional piece. Fresh and fine. Mint never hinged. SG116var; SC26var; ZMB232var
