Original vintage QSL card from amateur radio station KG4, operating at the United States Marine Barracks in Guantanamo Bay, Cuba. KG4 was the long-used call sign prefix for US naval and military amateur radio operations at the base.
The card features a photographic image of the Marine Barracks compound with Cuban border signage visible, reflecting the geopolitical significance of Guantanamo Bay during the Cold War period.
- Call sign: KG4
- Location: Guantanamo Bay, Cuba
- Facility: US Marine Barracks
- Type: Amateur radio QSL confirmation card
- Postal status: Unused
- Era: Mid 20th century
- Manufacturer: Raum Printing, Philadelphia, PA
- Size: Standard QSL card
A strong example for collectors of military radio history, KG4 stations, or Cold War era ephemera.
