The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Preston. c. 1935. Double Aperture. First Print. NWPB Series 5
Preston. Double Aperture. c. 1935.First Print. NWPB Series 5
Preston. Double Aperture. Calendar Print. NWPB Series 5. 1935
Birkenhead. Vertical Aperture Fluted. First Print. NWPB Series 4. 1857
Birkenhead. c. 1857. Vertical Aperture Fluted. First Print. NWPB Series 4
Double Aperture box. Preston. e. 1935. MacDowell Steven. NWPB Series 5. 1981
