Walters did paint a pipe, suitably doubled as it would appear to a two-eyed viewer looking slightly beyond it, and such images could be seen as his own attempt to enter the fray of European modernism from which his provincial style had until then excluded him. Certainly he later made works in a modernist manner, with abbreviated, alien-like figures wandering in strange duplicated worlds. Perhaps he was searching for a way to make his discoveries relevant to his artistic age. Sadly, he realised shortly before his death that he had probably failed. In a brief and poignant article entitled ‘The Decline in Artistic Taste’, published in 1948, he defiantly restated his case: ‘if only painters would use both eyes at once, they would not be tempted to distort in order to avoid resemblance to photography’. But by then he could see little sign that contemporary artists, or indeed anyone else, were responding to his call. (http://www.tate.org.uk/research/publications/tate-papers/23/as-seen-modern-british-painting-and-visual-experience)