With an exhibition due at the V&A later this year (more on that later), it might be a good time to invest in some of the eccentric British poster art of the late 60s. After a good deal of searching around, I’ve found a website that has a great selection of original posters from the era.
Psychotron has a range of poster art from the clubs (for example, the Ricky Tick and UFO) , from live gigs and a number promoting Oz magazine, in particular, the work of Martin Sharp.
There’s also a selection of posters from other countries, especially the USA, plus some more affordable re-prints from the era. The website isn’t the best in the world, but if you’re looking for a shrewd investment, there’s plenty here that should serve you well in years to come.