The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
National Gallery. Vincent van Gogh. Chair and Pipe. National Gallery Publications. Great Britain. No. 1526
Tate Gallery. The Chair and the Pipe. 1888. Courtauld Fund Trustees. Henry Stone. Vincent van Gogh
National Gallery. Trafalgar Square. The National Gallery and the Christmas Tree. Henry Stone and Son Ltd. Card No. 1275
National Gallery. The National Gallery and the Christmas Tree. Trafalgar Square. Waterlow and Sons Limited. No. 1275
Edinburgh Castle and the National gallery. Crown
Edinburgh Castle and the National Gallery. Crown. 1980
Edinburgh Castle and the National Gallery. Crown
2. Edinburgh Castle and the National Gallery. Crown