The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
School Children in the Class Room. Real Photo
Children in the Class Room. School. Teacher. RP
Class Room. School Children. Probably Brighton. Postcard
School Class. Children in the Class. British Made
Group of Children. In The Class. School. 1913
Children. School. Classroom. Teacher. Unknown Place
Unknown school. Children sit in the classroom. Postcard