The 32mm wide circular cupronickel medal bears the Queen's effigy and the inscription 'QUEEN ELIZABETH II' on the obverse.
It was awarded to members of the Sierra Leone police and armed forces serving on 27 April 1961, including seconded British personnel.
[7] The 32mm wide circular bronze medal bears the Queen's effigy and the inscription 'QUEEN ELIZABETH II' on the obverse.
It was awarded with a ribbon clasp inscribed 'CONGO' to members of the Sierra Leone armed forces who served during the Congo Crisis of 1962–63.
It is a circular silver medal bearing the effigy of the Queen on the obverse with the inscription 'ELIZABETH II DEI GRATIA REGINA F.D'.
The reverse is inscribed ''FOR LONG SERVICE AND GOOD CONDUCT'' over four lines with the words ''ROYAL SIERRA LEONE MILITARY FORCES'' around the circumference.
They generally carried over the previous rules and regulations, including the 18 years qualification period for the long service medals.
Although the relevant Royal Warrants were drafted on 20 August 1964, there were protracted negotiations between the Sierra Leonean government and the Royal Mint caused by discussion on the precise specification and design of the medals, and by the country's political situation which meant that the awards were a low priority.