The annual two-day York Card Expo International at York Racecourse, which runs this year on Friday and Saturday, August 31-September 1, is now in its 29th year.
The event attracts 80 dealers in postcards and ephemera from across the UK, Europe, Russia and the US.
Felicity Stasiak, co-organiser of the expo with her husband, dealer Jack, said: “Along with topography, Edwardian social history – for example, the chains used on the building of the Titanic is a card we have – is among the most popular themes for collectors as well as advertising, hospitals and churches.”