When you’re walking through a market or city center and you see a stall selling Banksy canvases, two things will enter your brain: that’s Bansky’s stuff, and it’s fake. The sheer amount of fake knock-offs have plagued the enigmatic artist’s work, and he was out to prove this – we reckon – with another stunt.

BanksyOne of Banksy's pieces in a tunnel near Waterloo Station, London

He armed an old guy with thousands of dollars worth of his work and set him up in Central Park on a stool, selling a number of his works – worth up to £20,000 – for around $60 each. That’s something near £38. A few lucky people grabbed the bargain of a lifetime.

A guy from Chicago decided $440 was okay for an impulse buy, and bought four to fill out the walls in his new place. That man now has genuine Banksys – worth something like £80k in total – on his wall. Another woman bought a couple of little canvases – having negotiated a 50% off deal – for her kids. At the risk of repeating ourselves: those kids have Banksys on their walls. Little Banksys. There was another purchase; a woman from New Zealand grabbed a couple, making the total sales of the day $420 (£263).

Watch loads of people walk by Banksy's 'Art Sale'

Footage of the stall, which you can watch above, is now on Banksy’s website. "Yesterday I set up a stall in the park selling 100% authentic original signed Banksy canvases. For $60 each,” he wrote to accompany the vid. "Please note: This was a one off. The stall will not be there again today."

The underground, guerrilla artist recently spoke out about his brand of street art in an interview with Village Voice. "I know street art can feel increasingly like the marketing wing of an art career, so I wanted to make some art without the price tag attached," he said. "There is no gallery show or book or film. It's pointless. Which hopefully means something."