Vintage poster specialists, Onslows, have been exclusively represented by Mary Evans for over 12 years. Their image collection is one of our most visually stunning, with cracking poster designs from the early to mid-20th century. There are plenty of glamorous international travel advertisements to tempt you to sunny climes or fashionable ski resorts, and it's worth pointing out a set of images of Titanic memorabilia including letters, White Star Line artefacts and commemorative items.

A focus on posters from two world wars provides an ample supply of information and propaganda, with graphics encouraging you to save food, water and resources, as well as to buy war bonds, evacuate your children to the country, and volunteer to serve. Buying British is recommended by a particularly powerful set of designs. A small selection of the 3000 or so colourful posters on our site can be seen here. If you'd like to see more, or discuss a project, please get in touch by email at pictures@maryevans.com or by phone on 020 8318 0034.