This postcard depicts "Great Orme's Head from the Sand Dunes". Great Orme is located on the north Welsh coast near Llandudno.
The message on the back appears to be addressed to "Anthony Ashworth Briggs" (although the handwriting isn't entirely clear). Part of the message reads "Many happy returns of the day, dear Tony.." and seems to be signed "With love A Newitt".
There is a postmark that reads "Northampton" and has two dates, one of which is 9 Jan 21" but the 1 is blurred. However with the George V stamp indicting a period between 1910 and 1936, this postcard appears to be from the 1920s.