100 Shillings

Tanzania's first post-independence banknote series, of which this is a part, was issued in 1966 following the dissolution of the East African Currency Board — the shared monetary authority that had served Kenya, Uganda, and Tanganyika under British oversight. The new Bank of Tanzania needed its own currency quickly, and De La Rue was the natural choice: they had printed the EACB notes and held the existing relationships with the regional central banks.

The P#4 is the highest denomination in that inaugural series, which made it politically as well as economically significant for a government keen to signal fiscal independence to international observers.