On 6 Oct, 09:22, "Paul Scott" wrote:
"MIG" wrote in message

...

I ought to have paid more attention before, but how the eck can
Fenchurch Street to Bank be an OSI when Cannon Street to Bank is not?

Presumably because Cannon St to Monument(Bank) has a direct tube service?

And I note that so does Waterloo to Embankment, which is an OSI and
much further.