The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Windsor Castle. The Queen Guard Chamber. Topical Press. Pitkin Pictorial Postcards
Windsor Castle. The Queen Guard Chamber. Pitkin Pictorials Ltd
Guard Chamber. Windsor Castle. M. 335. RP
Windsor Castle. The Waterloo Chamber. Pitkin Pictorials. HM Queen Elizabeth II
Windsor Castle. The Queen Presence Chamber. Topical Press. Pitkin Pictorials Postcards
Windsor Castle. The Waterloo Chamber. J. Arthur Dixon. H. M. The Queen
