Generalleutnant of the Luftwaffe Martin Harlinghausen served as commander of the "Seeflieger" (seaplane squadron) on Mallorca during the Spanish Civil War (Legion Condor). For his service, he was awarded the Spanish Cross in Gold with Diamonds. During World War II, he served as Geschwaderkommodore of Kampfgeschwader 26 and was also involved in the campaign in Africa. In the last two years of the war, Harlinghausen commanded the II. Fliegerkorps in the Mediterranean and Luftwaffenkommando West.

Awards:

- Spanish Medalla de la Campaña

- Spanish Cross in Gold with Diamonds

- Luftwaffe Combined Pilot's and Observer's Badge with Diamonds

- 1939 Iron Cross 1st and 2nd Class

- Wound Badge in Black

- Knight's Cross of the Iron Cross with Oak Leaves

- "AFRIKA" cuff title

Personal ring of Generalleutnant Martin Harlinghausen. Made of genuine silver. "800" silver hallmarked inside. On the top is a black Onyx featuring the squadron emblem of the Seeflieger Staffel 88. It has no chips. Also decorated on each side with a Luftwaffe eagle. A nice ring! Inner diameter: 19.46 mm.