The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Newquay. Porth. Cathedral Cavern. Judges. 11687
Newquay. Cathedral Cavern and Porth Island. C. W. Faulkner. Series. No. 598. B
Cathedral Cavern. Newquay. J. Welch. 1911
Cathedral Cavern. Newquay. J. Welch
The Cathedral Cavern. Porth. RP. 1952
Porth. Cathedral Cavern. Friths Series. No. 20277
Tate Gallery. The Lady of Shalott. John William Waterhouse. Saunders and Williams. Printers
Snowdon. Llanfair Caverns. The Cathedral Cavern Arches. Judges Limited. C 3364 X