Like any young couple, Jack and Evelyn are prone to the odd lovers’ tiff, but back in the days of snail mail (remember letters?), making up was a more complicated affair. 

Evelyn’s mighty cross with Jack and ready to call the whole thing off: will his written plea for clemency hit the doormat in time? “Please forgive me honey, just this once” Jack scribbles earnestly, having seen one too many American movies. Trouble is, he can’t remember if Islington’s in N1 or NW1. The silly fool!

With the avant-garde flourish of experimental filmmaker Len Lye, this neat warning of postcode peril came courtesy of the GPO Film Unit. Hand-written love letter or hastily-typed text (LUV U CU L8R xx) – which would you prefer? (Simon McCallum)

More GPO films are available to buy as part of the BFI 2-disc DVD set ‘Addressing the Nation: The GPO Film Unit Collection Volume 1’ – http://filmstore.bfi.org.uk/acatalog/…

The 2-disc DVD set ‘We Live in Two Worlds: The GPO Film Unit Collection Volume 2’ will be released February 23 – http://filmstore.bfi.org.uk/acatalog/…