Two stamps commemorating National Productivity Year, 2 1/2d stamp (used) Units of Productivity, 3d stamp (used) National Productivity issued in Great Britain 14 November 1962 designed by David Gentleman
Two stamps commemorating National Productivity Year, 2 1/2d stamp (used) Units of Productivity, 3d stamp (used) National Productivity issued in Great Britain 14 November 1962 designed by David Gentleman