Victor Prout created a makeshift dark room on board a boat he used to travel along stretch of the River Thames . Prout captured images of iconic landmarks in the 1850s , such as the Houses of Parliament and Windsor Castle . Images are oldest surviving documented record along the river and are remarkably similar to those of today . Collection , contained in The Book of the Thames , is to be sold for 28,500 at the Oxford Book Fair .
Victor Prout created a makeshift dark room on board a boat he used to travel along stretch of the River Thames . Prout captured images of iconic landmarks in the 1850s , such as the Houses of Parliament and Windsor Castle . Images are oldest surviving documented record along the river and are remarkably similar to those of today . Collection , contained in The Book of the Thames , is to be sold for almost £30,000 at the Oxford Book Fair .