The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
The Mersey Tunnel. Liverpool. Cameracolour. Salmon. No. 2124
The Mersey Tunnel. Liverpool. Salmon. No 2124c
Liverpool. The Mersey Tunnel. Photochrom. No 75600
Rugged Cornwall. Tintagel. The Lizard. J. Salmon. Cameracolour. Multi View
Mersey Tunnel. Liverpool. Multi View. 1963. RP
Liverpool. Mersey Tunnel. Valentine. RP. Multi View
Liverpool. Mersey Tunnel Entrance. Excel Series. RP
Symonds Yat. Salmon. Cameracolour. The Great Doward. Symonds Yat. River Wye. 1991