This is a Belgian non portable medal: “Dieu et Mon Droit L’union Fait la Force”, this translates as: “God en mijn recht, Eendracht maakt macht/God and my right, Unity makes strong”.
I found one other example of this medal in the (online) collection of the Imperial War Museum, were it was described as a post World War II commemorative medal for Service Clarence, which was a major MI6 network based in Occupied Belgium. It evolved from the First World War espionage organisation, La Dame Blanche, and by the end of the war it had more than 1,500 agents operating throughout Occupied Europe.
The medal shows an inscription of St George, upon a horse, bearing the Royal Standard and slaying a dragon appears at the centre.
Designed by artist Marcel Wolfers.
In very good condition, measuring 6,5 centimeters in diameter. Complete with the original round case, although the lid came off (very easy to repair with a little glue). In pencil is written the name and date (of issue?) 1948 on the outside lid.
The medal is named to Demarque, Jean Louis and numberd # 0018 (very low!).
Quite a rare medal. For more information see here: https://www.iwm.org.uk/collections/item/object/30103039