"We're not sure why Reg was used but he was a big name at that time," admits a spokesperson from Barclays.
"And a Barclays customer," she adds.
Reg Varney — the Canning Town born comedian and star of Beggar My Neigbour — was an odd choice to introduce the world to the concept of instant cash. He'd soon come to be known as that dolly bird-ogling perv of a bus driver Stan Butler, a role brilliantly spoofed by Harry Enfield. He was hardly the most far-sighted celebrity London had to offer.
All the same on 27 June 1967, a small crowd was forming outside a branch of Barclays, where Varney, dressed in cardigan, slacks, shiny tie and golfing hat, was about to feed a paper cheque (these pre-dated the plastic card) into an strange machine and take out the maximum amount allowed: £10.
Here was another strange thing though: that machine was on Enfield High Street.
The US wouldn't unveil its first ATM for another two years (they'd obviously prioritised putting a man on the moon) and the same went for the Australians (their Chubb cash machines didn't instantly hand back the card — it was posted to you). Here was a chance for the Brits to give their technological know-how a twirl, so surely it'd have been better to demonstrate the cash machine in Leicester Square, with, say, Michael Caine punching in his four digits?
It turns out Barclays had its reasons. For the location, at least.
"Enfield was chosen as it had a model cross-section community, was fairly self-contained and had sufficiently high enough windows and enough space inside for the safe," Barclays tell us.
Quite what's meant by 'model cross-section community' and why that's important for a cash machine, isn't clear. The 'windows' logic seems feasible even though there must be banks all over London with high ones.
Truth is, the bank probably didn't want too many people fiddling with their latest toy, not before it had been properly tested out. And it's easier to sweep something under the carpet if it's in Enfield, rather than Westminster.
That would explain the other relatively low-key venues for the first cash points. Enfield's machine may have been the first, but it was one of six prototypes; the others rolled out later that year were in Hove, Ipswich, Luton, Peterborough and Southend. They were, of course, a roaring success. In 1969 there were 34 cash machines within a 15-mile radius of Marble Arch announced for installation, and today there are three million cash points across the world.
It's almost fantastical that something so universal should have started in Enfield; it's tantamount to Paul Daniels launching the internet in Penge. A small plaque, installed in 2010, marks the spot where the event that would change the world took place almost 50 years ago. The legend, almost tongue in cheek, reads:
The world's first cash machine was installed here on 27 June 1967. Lives made much easier.
Fittingly, most people heading into the branch to use the cash machines walk past it without noticing. Perhaps if Barclays had got Michael Caine on board, more people would know about this little piece of world-changing history.