10 Rupees Benazir Bhutto, Aluminium Pattern

Pakistan's 10 Rupee denomination had been struck in bimetallic form since 2006, so this aluminium pattern from 2008 represents a material test almost certainly conducted in the months following Benazir Bhutto's assassination on 27 December 2007. The State Bank moved quickly to issue a commemorative coin, and alternative compositions were trialed before the final bimetallic version was adopted. Aluminium was almost certainly rejected on durability and vending-machine compatibility grounds.

Pattern coins of this type rarely leave the mint through official channels. Most known examples surfaced through informal routes.