What BW gearbox is this??

Another question I am afraid...

Looking at all the old bits and pieces I have in my garage and I have come across the 4 speed that used to be in my 56.

Problem is I dont know what it is...

So, could anyone help point me to a site that I can compaire the numbers against? (already tried Google and failed)

Pretty sure it is a BW, possibly a Super T10, give away could be because it is cast into the casing...

The numbers on the box are

13-04-097-904 on the case

12-04066.90 on the tail shaft

It has what appears to be 26 splines on the input shaft and 6 grooves on the input shaft.

The side plate is held on with 9 bolts and the reverse selector is on the tail shaft.

So...

Over to someone who knows a lot more about these things than I!

Thanks in advance

P.

 

Sounds like a Super T10. Look again, see if you can find a number sequence stamped into it, hopefully with about 9 characters. Also, pictures are very very helpful.