100 Rupees Islamic Summit Conference

Issued to mark the Third Islamic Summit Conference held in Lahore in February 1974 — not 1977, which is the strike or release date recorded for some distribution versions. The Lahore summit was a significant moment for Pakistan's Zulfikar Ali Bhutto, who used the gathering of 37 Muslim-majority nations partly to consolidate his own political standing and to push for recognition of Bangladesh, which had broken from Pakistan just three years earlier.

Mintage was limited, and the .925 silver specification places this firmly in the commemorative rather than circulation category — it was never intended as spending money.