Belgian 1e Jachtwing alle weer badge

[High Wood]

I picked up this stunning badge this morning and have worked out that it was worn by the 1st (all weather) fighter wing of the Belgian Air Force. Could some one please confirm that it dates from the early 1960's and give me an idea of its scarcity and value? This badge may be offered for sale as it is outside my collecting field; on the other hand I may keep it as it is a beautifully made badge.