"I flew short haul in my early days in the 727, often based in Germany (was the IGS with PanAm)"
One of Jack O.Bennets boys then?
So you might have gotten clearances from my dad, who used to be an ATCO in EDDS from 1959-1983...I saw the last PanAm 727 takeoff in Stuttgart - the end of an era!
Enjoy your retirement!