The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Cooling Waters. Cows. No. 3055. Rotary Photo. RP. Opalette. No. 529170
Sweet Watered Pasture. Cows. No. 3055. Rotary Photo. RP. Opalette. No. 529170
Natures Mirror. Cows. No. 3055. Rotary Photo. RP. Opalette. No. 529170
With All Good Wishes For Your 21st Birthday. Bird. Cows. Rotary Photo. London
Someone Coming. Rotary Photo. Real Photograph on Rajar Bromide Card. 1927
A Cool Retreat. Rotary
Sweet Cooling Waters. Rotary Photographic Opalette Series
Margaret Cooper. Rotary Photo. Real Photographic Opalette Series