The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
John Constable. The Cornfield. National Gallery. Trustees by Waterlow and Sons Ltd. London
John Constable. The Cornfield. National Gallery. For Trustees
Cornfield. John Constable. The Trustees of the National Gallery. Royle Publications. London
National Gallery. The Cornfield. Constable John. Card No. 1128. Britain For the Trustees
National Gallery. The Cornfield. Constable. John. Card No. 1128. Printed in Great Britain For the Trustees
National Gallery. The Cornfield. Card No. 1128. John Constable
National Gallery. The Cornfield. Waterlow and Sons Limited. Card No. 1128. John Constable