A rasher of bacon was found in a returned book by a Worthing librarian.
The lender had used an object usually found between two slices of bread rather than pages as a bookmark.
This was just one of the oddities artist Dan Thompson, of Lanfranc Road, Worthing, has come across while collecting quirky items found in second-hand and library books for a decade.
Dan's collection includes a wide range of ephemera dating back to the 1940s, including family photographs, concert tickets, a Kevin Keegan soccer card, numerous postcards, including a historic view of the Mersey Tunnel, a map of Hong Kong, a Eurostar ticket, a Lottery ticket, and folded paper, or origami figures.
There is also a small birthday card dated 1942 and a leaflet published by the Jamaica Cricket Association to publicise a match between Pakistan and the West Indies in 1958.
Now they have gone on show at the town's main library in Richmond Road.
There's no sign of any bacon in the glass showcase, but Dan said it was not as unusual as you might think to find a rasher of bacon in a book. A similar inspired this website, bibliobuffet, which lists people who have found rashers in books.
However, Dan has made this bookmark which you can print out and use as many times as you like.
Have you found an unusual item in a book?
Tell us below or email Paul Holden