The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Piccadilly Circus. S. Hildesheimer. No. 601
Piccadilly Circus. S. Hildesheimer. No. 601. 1906
London. Piccadilly Circus. S. Hildesheimer. No. 601. 1906
Piccadilly Circus. S. Hildesheimer. London and Manchester. No. 601. 1905
Piccadilly Circus. Hildesheimer