Efficiency Decoration: The ED is an oval skeletal medal in silver and silver-gilt with the crowned monogram in an oak wreath, the ring for suspension being fitted to the top of the crown. It differs also from previous decorations in having a suspender bar denoting the area of service: Territorial (UK), India, Canada, Fiji, Australia or other overseas country being inscribed as appropriate.
Please Note: The ONLY two versions available, are;
Or NEW ZEALAND and REGULAR ARMY (UK) by special order.
The decoration was instituted in 1930 could be awarded to part-time officers after twenty years of commissioned service, not necessarily continuous, as an efficient and thoroughly capable officer on the active list of the Territorial Army or of any other Auxiliary Military Force of the British Empire. Half of the time served in the ranks could be reckoned as qualifying service for the decoration. Service in West Africa, natives of West Africa and periods spent on leave excluded, and war service was reckoned two-fold as qualifying service for the decoration.
The equivalent award for other ranks was the Efficiency Medal.
Recipients serving in the Territorial Army of the United Kingdom are entitled to use the post-nominal letters TD, while recipients serving in the Auxiliary Military Forces are entitled to use the post-nominal letters ED. A recipient who had earlier been awarded any Long Service and Good Conduct Medal or the Efficiency Medal or a clasp to either for service in the ranks, was not permitted to wear the medal or clasp together with the decoration until the full service periods prescribed for each medal or clasp and the decoration had been completed.
From 1949, the required period of qualifying service was reduced to a minimum twelve years of commissioned service in the Territorial Force and the Auxiliary forces of the Commonwealth. In respect of officers whose service terminated before 3 September 1939, the qualifying period of commissioned service remained twenty years.
At the same time, a clasp was instituted which could be awarded upon the completion of each further period of six years of qualifying service. The maximum number of clasps awarded to any one recipient is five.