The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Niagara Falls. Ontario. Canada. John Hinde
Canada. Niagara Falls. Ontario. John Hinde. Royal Specialty Sales. E. Ludwig
Canada. Ontario. Niagara Falls. John Hinde. E. Ludwig. 1972
Canada. Ontario. Niagara Falls. John Hinde. E. Ludwig. 1973
Canada. Niagara Falls. Ontario. John Hinde. Peterborough Post Card. E. Ludwig. 1970
