Decade of Development Pakistan Vintage First Day Cover

This is Decade of Development(1958-1968)
 Pakistan Vintage First Day Cover in my collection. This First Day cover issued on 27th October, 1968 by Pakistan Postal Department.

100 Years (Centenary) of Pakistan Railways 1961 First Day Cover

This is 100 Years (Centenary) of Pakistan Railways First Day Cover issued by Pakistan Postal Department on 31st December, 1961 in my collection.