The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Chatsworth House. 186438. Friths Series
Chatsworth House. F. Frith. No. 18643. B
Chatsworth House. F. Frith. No. 18643 B
Chatsworth House. F. Frith. No. 18646 A
Chatsworth House. Frith
Chatsworth House. Friths Series. No. 18643B
Chatsworth House. F. Frith. Postcard