lost ipad mon march 7th from euston to Betterton St

Help please. Grey “black” cab from euston underground to Betterton St, Covent Garden, approx 11.20am – arrived Betterton St 11.35 ish.
Two squiggles on receipt, not identifable. Driver approx 55, grey, glasses – i think, and i seem to remember a cap? Distinctly remember driver asking me to come around to pay – which had never happened before – Usually pay cash from back seat and collect receipt from outside.
Anyhelp – I know its a long shot – but it was a birthday present – from a now dead parent….. thanks all…