The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Giants Gate Giants Causeway Carbo Colour Valentines 1951
Giants Organ. Giants Causeway. 15137. Carbo Colour. Valentines
The Honeycomb. Giants Causeway. Carbo Colour. Valentines. 1962
Dunluce Castle. Giants Causeway. Carbo Colour. Valentines
The Honeycomb. Giants Causeway. Carbo Colour. Valentine. Dundee and London
Rope Bridge. Carrick a Rede. Giants Causeway. 15451. Carbo Colour. Valentines
Giants Gate. Giants Causeway. Valentine. Carbo Colour. No 15133