bronbemaling, main gas transport pipes, water drainage, Tusschenklappen, Groningen Date: July 1967 Location: Balkbrug, Groningen, Interschenklappen Keywords: source milling, main gas transport pipes, water drainage

---

Size: 2649px × 2642px
Photo credit: © BNA Photographic / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: