These bookmarks are made from cards from a vintage card game Famous Cities which I believe is from the early 1950s. The card game has been well used and worn so be aware these are very 'vintage'. The box has a guest house named stamped on it so imagine how many holiday makers might have played it all those decades ago.
Repurposed into a useful bookmark with the addition of a ribbon they make an unusual bookmark.
The card measures approximately 7x11 cm and has a ribbon around 11cm long.