The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Giants Causeway. Giant Organ. Valentine. Valentine Series
Giants Organ. Giants Causeway. Valentine. Phototype. 1952
Giants Organ. Giants Causeway. Valentine. 1913
Giants Causeway. Giants Organ. Valentine. Photo Type
Giants Causeway. Giants Organ. Valentine and Sons Ltd. Phototype
Giants Organ. Giants Causeway. 15137. Valentines. RP
Giants Organ. Giants Causeway. 15137. Carbo Colour. Valentines
Giants Organ. Giants Causeway. Milton Series. Woolstone Bros