Hi BB,

That is an easy one to explain mate.
You will notice that it has a Villiers that is mounted back-to-front when compared to yours, and is a clockwise rotating engine driving a double 'V' belt pulley to the large pulley on the counter-shaft, on the right hand side of the machine.

Your machine is driven by an anti-clockwise rotating engine with a small chain sprocket to a large on the counter-shaft,on the left hand side.

If the crank-handle was placed on the inside as yours is, it would interfere with the large double pulley and side plate, because of the handles length.
It is easy to see that in the photo. wink

BTW, you will see that the Supercut in the photo also has a toolbox mounted on the right hand handlebar, I noticed in your pics, that both your petrol and electric don't seem to have one fitted.
I don't know if they were an optional extra or a standard fit...but you will notice in the original advert in my post above that it is not shown.

However, it is depicted in the Model 17 (Petrol) parts list shown here as part number 139 with the clamps (2 off) as part number 140.
[Linked Image]

I have had 2 Model 17's in my time (in fact I still have my 18" electric) and both have had the toolbox. I removed it from the electric and fitted it to my Model 45.
Here's a pic...
[Linked Image from i266.photobucket.com]
You may care to check with the lady you got the machine from, it may be hiding in the shed somewhere....
Good hunting BB,
cheers

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin