Zambia Zambia Philately: 1979 Sir Rowland Hill (1895-1979) – 32n Mailman thedigitalphilatelist 20/12/1979 Details Designer: Gabriel Ellison Printer: Questa Colour Security Printers Limited (The House of Questa) Process: Lithography Paper: Watermark: None Perf: 14.5 (comb) Cylinders: Sheet: Quantity: Sheet Numbers Related