The new (free) Bodleian exhibition, Dickens and his world, curated by Clive Hurst, is opening tomorrow. It runs from June 2 to October 28. There are lots of ephemera, mostly from the John Johnson Collection. The accompanying book: The curious world of Dickens by Clive Hurst and Violet Moller is full of ephemera too.
As well as items directly related to the novels (playbills of dramatisations, miniature theatre sheets etc), there are many ephemera showing the world Dickens lived in and wrote about, linked by quotations from his works.