"Paul Terry" wrote

Although I've seen that said many times, it must have been possible in
theory as the 1913 Metropolitan Railway Act proposed that an already
authorised line from Moorgate to Lothbury be extended to connect with
the Waterloo and City. Railway No. 5 in the bill proposed extending the
line from Lothbury to a junction with the W&C "at or near the eastern
end of the up platform of the Bank Station on that railway beneath Queen
Victoria Street".

Would this have been an extension of the Great Northern & City line?

Peter