Does anyone know where the '20 Sqn at Wildenrath' thing comes from? Corgi do a diecast GR1 of 20 Sqn Wildenrath and post #11 above lists 20 Sqn twice, once at Laarbruch and once at Wildenrath.
From memory, 20 Sqn were equipped with Harrier GR1 at Wildenrath in the 70's before re-equipping with Jaguar GR1 and moving to Bruggen. Finally, they re-equipped with Tornado GR1 at Laarbruch.