This coin is a continuation of the series of British West Africa threepence coins. Unlike the small denomination bronze coins though, it has a new design and copies the shape of the contemporary British nickel-brass threepence piece.
It was only issued in 1959 and was demonetised in 1973 with the introduction of Nigeria's decimal currency, the Naira.
Crowned bust of Queen ELIZABETH II facing right; around, QUEEN ELIZABETH THE SECOND; the artist's initials CT (for Cecil Thomas) incuse on the bust truncation.
||QUEEN ELIZABETH THE SECOND
Cotton flowers, the date 1959 is above; around above, FEDERATION OF NIGERIA; around below, the denomination THREE PENCE. The legend and the denomination are separated by two small "Stars of David".
The designer's initials, P.V. (for Paul Vincze) are under the flower.
||FEDERATION OF NIGERIA THREE PENCE 1959
References to additional information:
[Book] Remick, Jerome. 1971. The Guide Book and Catalogue of British Commonwealth Coins, pp 469-470.