The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Dover Castle. 1931. Postcard
Dover Castle. 1950
The Castle. Dover. 1923
Dover Castle. 1948
Castle. Dover. 1580
Dover Castle. D 10033. Norman. RP. Post Card. 1960
Dover Castle. Stairs. Interior of Keep. Ministry of Works. Crown
Dover Castle. Constable Tower From N. W. Crown