1.   Title: Cologne Railway Bridge.
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds
2.   Title: Cologne train bridge.
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds
3.   Title: Cologne train bridge.
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds
4.   Title: Cologne train bridge
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds
5.   Title: Cologne train bridge
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds
6.   Title: Iron bridge - Cologne
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds
7.   Title: Rhine Bridge at Bonn
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds
8.   Title: Rhine River Bridge at Bonn
Institution: University of Saskatchewan Archives
Fonds/Collection: S.R. Laycock fonds