50 Cents - George V

The East Africa Currency Board was a colonial monetary authority serving British East Africa, Uganda, and Zanzibar, and its early 1920s coinage was produced at the King's Norton and Heaton mints in Birmingham — not the Royal Mint. The 1921–1924 issues represent the transition period when silver content was being quietly reduced across British colonial coinages to recoup costs after the wartime silver price spike, dropping these pieces to a debased billon rather than the sterling standard their predecessors had carried.

Heaton-struck pieces carry an H mintmark; King's Norton pieces are unmarked. The distinction matters for completeness, as output between the two facilities was uneven across the four-year run.