The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Group Of School Children. Postcard
Unknown school. Children sit in the classroom. Postcard
Unknown school. Children sit in the classroom
Unknown School. House. Childrens. Post Card
School. Children. Old Photography. Postcard
Three children at an unknown old building. Postcard
Old Postcard. Children. Rotary. RP. 1913
Old Postcard. Children. RP