Excellent – it's a fake. Please don't resell it as genuine – a real one costs about £150.
Is it worth £5.50 though? Might be fit for purpose despite the deception. I only use my El-cheapo lever dial indicator as a comparator not as a measuring tool. It's fine for centring work in a 4-jaw chuck.
Likely Barry's fake is based on a genuine cheap DTI movement, and they're not awful. (Main fault on mine is a tendency to stickiness, not that it doesn't work. It's slightly untrustworthy rather than hopeless.)
If a £5.50 fake works well enough, it's a bargain. If I'd paid full whack expecting a Mitutoyu and that arrived, I'd be inconsolable! As it is, the entertainment value alone was worth it!
If only it had CE Marks and a British Lion Egg stamp!

Dave