Chris wrote:
On 5 Dec, 13:27, Matthew Dickinson
wrote:
It's not available from the automatic machines, but the ticket seller
is able to issue it as a One Day Travelcard, as long as they set the
origin station to Amersham.

Is a Zone D travelcard actually an 'all-zones' travelcard - i.e.
freedom to roam within zones A to D as well as in zones 1-6? Or a
return to BZ6 with freedom to road just within Z1-6?

It's a kludge to the zonal system which, I'm led to believe, originated
because the relevant County Council(s) wouldn't contribute to the
Travelcard "pot" (whereas Essex County Council *do*, hence the Central
Line out to Epping being moved to Zone 6).

Unlike other "out-boundary" Travelcards, the Amersham/Chesham/Watford
(Met) ones *ARE* still valid when you get out (or back) to the far
reaches of the Met, and valid to wander round the North West frontier as
much as you like. That *ALSO* applies to such Travelcards when issued
from NR Ticket Offices, a matter published in "Newsrail Express" several
years ago.

HTH,

Barry