Pakistan 1948 De La Rue proof of 1a blue single superimposed over 6p violet (inverted), reverse shows numerous impressions
Pakistan 1948 De La Rue proof of 1a blue single superimposed over 6p violet (inverted), reverse shows numerous impressions
Pakistan 1948 De La Rue proof of 1a blue single superimposed over 6p violet (inverted), reverse shows numerous impressions