Willesden Junction station is in Zone 3 actually, though I agree the
crossing is within Zone 2, and it's nearly a mile nearer to Charing Cross
than the ones at Barnes.
--
Richard J.

Sorry, I have mis-read my pocket Underground map: I thought Willesden Junction
was on the border of Zones 2 and 3 but, on closer inspection, I see that it is
just inside the Zone 3 area! I confess here and now that I have more than once
travelled from Clapham to Willesden on a Zone 1 & 2 Travelcard, albeit without
leaving the station!

Marc.