The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
National Gallery. Mrs. Siddons. Waterlow and Sons Limited. Card No. 1053. Gainsborough
National Gallery. Mrs. Siddons. Gainsborough. Thomas. Card No. 1053
London. National Gallery. Mrs. Siddons. T. Gainsborough. The Wrench Series. No. 833
National Gallery. Gainsborough. Mrs. Siddons. Card No. 1053. Henry Stone
National Gallery. Mrs. Siddons. Gainsborough. Post Card No. 1053. Waterlow
National Gallery. Mrs. Siddons. Gainsborough. Card No. 1053. Waterlow