Northern line Edgware extension. The building of Brent Viaduct, showing the wooden centring used to support the arches while under construction, with a group of workmen standing conferring. Some completed arches in the right background.
Photographed by Topical Press, 2 Oct 1922
Location: Golders Green, Barnet NW11
Image no: U1002
Inventory no: 1998/76120