The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
The Ontario Science Centre. Toronto. Ontario. Canada. E. Ludwig. Hinde
Canada. Ontario Science Centre. Toronto. A Traveltime Product
Toronto. Ontario. Looking South From the Ontario Science Centre. Metro Toronto News. Majestic Post Card. W. J. L. Gibbons
Canada. Toronto. Ontario Science Centre. Traveltime Product. Grant Mann Lithographers Ltd. W. J. L. Gibbons
Canada. Ontario. Ontario Science Centre. Traveltime Product
Canada. Ontario Science Centre. Traveltime. Grant Mann Lithographers. W. J. L. Gibbons
Ontario Science Centre. Don Mills Road. Toronto. Ontario. Canada. Royal Specialty Sales
Canada. Ontario. Toronto. Metropolitan. Edwards Gardens. Royal Specialty Sales. 1971
