Bahamas Bahamas Philately: 1974 Universal Postal Union Centenary (1874-1974) – 18c UPU Monument thedigitalphilatelist 23/04/1974 Details Designer: P Powell Printer: Questa Colour Security Printers Limited (The House of Questa) Process: Lithography Paper: Watermark: Multiple St Edward’s Crown Block CA (sideways) Perf: 14 (comb) Cylinders: Sheet: Quantity: Related