This image is undated; however it cannot be later than 1920 as this copy of the postcard bears a postmark of that date. The sender has noted that the "machinery is over 150 years old of oak and teal, as good as ever it was last used 13 years ago." Colour copy of WPAC-WIN-01365.
This copy of the postcard bears a 1/2d stamp. The postage rate for postcards rose to 1d in 1918, so the image presumably does not date from later than that year. Someone has noted on the back that the mill was being used as tea rooms at the time of the image. It is a colour copy of WPAC-WIN-01359.
This image is undated; however it cannot be later than 1916 as this copy of the postcard bears a postmark of that date. Message on the back states the mill sits "on top of the Downs, 600ft high".
This copy of the postcard bears a 1/2d stamp. The postage rate for postcards rose to 1d in 1918, so the image presumably does not date from later than that year.