The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Keswick. c. 1885. Anonymous Cylindrical Low Aperture. Calendar Print. NWPB Serie 3
Bolton. c. 1881. Anonymous Cylindrical High Aperture. Calendar Print. NWPB Series 4
Preston. Double Aperture. c. 1935.First Print. NWPB Series 5
Preston. c. 1935. Double Aperture. First Print. NWPB Series 5
Bolton. Anonymous Cylindrical High a Aperture. c. 1881. Calendar Print. NWPB Series 4
Preston. Double Aperture. First Print. Series. 5. a
