Hi Allan thanks for taking the trouble to reply, but that ebay item looks to be a postwar timing cover with the breather assembly which moved to that position from the drive side crankcase about 1948?
The oil telltale connects to a union on the crankcase itself below the front of the timing cover.
Thanks anyway.
Rupert

There was an Italian chap making some very good copies...Someone on the forum may have his contact details...Ian

email (option): ian@wright52.plus.com

Thanks Ian, if anyone with the Italian chap's contact details sees this, please get in touch...

Here is an old thread on the subject. Maybe contact Bastiaan or Michiel for any update?

http://pub37.bravenet.com/forum/static/show.php?usernum=3155626639&frmid=16&msgid=1424416&cmd=show

Also as it happens, the breather timing case cover (#65-2143) was used in 1940 for the WB30. (with the non winged BSA logo) Ron
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email (option): ronpier@talk21.com

Hi rupert
I have Richard’s details / he is based in Italy
I can pass them to you off line

Br
Jo’b

email (option): Jonnyob1atgooglemail.com

Many thanks John, please send me his contact details, you have my email and Wotsap...