Hi
BB,The toolbox has been mounted in various ways, and yes, through the handlebar as yours has is one of them...the one on my electric was by 2 cast fittings (part numbers 107 and 105 in the parts lists above, with the nuts inside the box with spring washers) and also mounted using 2 'U' clamps which is also on the parts list.
That mower in your pic is original with the petrol engine, we had 2 of those used as greens mowers at my local golf club, both had the double 'V' belts and the clockwise rotation Villiers.
By the way, through research this morning I have found that SB produced a 24" Supercut with a Honda engine and Villiers engines.
More to come on this. I haven't managed to get a pic unfortunately.
