The beautiful postmark used to cancel the FDC shows the monograms of three services of Pakistan namely Pakistan Army, Pakistan Air Force and Pakistan Navy. The top centre monogram is of Pakistan Army. It shows two crossed swords with an increasing crescent and a star onthe top. The bottom right monogram is of Pakistan Air Force depicting a flying falcon and a star on top; where as on the bottom left is the monogram of Pakistan Navy featuring an anchor in the middle and a crescent and a star on top.
Brief History Of Pakistan Ordnance Factories:-