National Seminar On Philately Multan 1992

Definitive stamps converted into commemoratives
Definitive postage stamps depicting the portrait of the Quaid-e-Azam (issued on 14-08-1989) were overprinted in light gray with the sentence “NATIONAL SEMINAR ON PHILATELY MULTAN 1992” 54.5mm long and 2.5mm high, to commemorate the seminar held in Multan during April 15-16, 1992. The sentence was repeated 20 times to form a block or cliché, which was then placed on the printing plate upright, sideways, sideways inverted and inverted.
While the cliches in the plate are 48 (6x8) printed over a sheet comprising 100 stamps 10x10. Each stamp measures 32.5x44.5mm while the clichés of the overprint measure 54.5x55mm. The overprint spill onto all four margins of the sheet. Some stamps therefore get all four formats of the cliches while other get only 2 or 3.
One hundred sheets of lower values; Re.1 and Rs.2 were additionally overprinted to produce 1000 stamp booklets each comprising strips of one of each value.