Alas Andrew, those handlebars do just sit loose in their holder, so a Keystone impersonation is perfectly possible. Health & Safety? What was that in 1963? I'm also starting to think that what I thought was a brake lever on the bars might actully be the main stop/go lever. When you pull the lever, it pushes out a sort of contact at the base of the main tube which rubs on something or other in the gloom of that hole.
Those angled tubes are indeed stablisers. The left-hand one is broken & a bit twisted (I think someone picked it up from there). As can be seen fron the attatched picture, some of the smaller (as in narrower) Wrigley trucks also followed the same styling.
Scootacar Mk 2 rear lights? Oh dear. If they are, that means I've got yet another vehicle where the sum of the parts are worth more than the whole.
& I'll have to put an armed guard on it when I show it.....
When I get the Chair running, it should be capible of 3 mph & have a range of 7 miles. Hmm, sounds good to me......