The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Saint Petersburg. Kazan Cathedral. 1993. USSR
Kazan Cathedral. Saint Petersburg. Russian Empire Postcard
St. Petersburg. The Kazan Cathedral. V. Baranovsky
St. Petersburg. The Kazan Cathedral. Alfa Color. V. Baranovskij
St. Petersburg. The Kazan Cathedral. Alfa Color
St. Petersburg. The Kazan Cathedral. Bronze Horseman. 2006
St. Petersburg. Kazan Cathedral. Bronze Horseman
Saint Petersburg. The Smolny Cathedral. P. 2. V. Voroncov