Parachutist wing of the Special Operations Section of the Spanish Legion in Western Sahara in 1975. Used only for a week, not authorized. Only 7 wings were made, so these offered in eBay and other sites are repros. Repros have gold knife and the attachement to the parachute is different than these 7 wings that were hand made. Price here is orientative, difficult to say how much can cost one of these.
I have obtained it from a brother-in-law who was a Sargeant in this unit.