Question time # 105

With Question time # 104 nicely put to bed by Sir Minty I offer you this view as QT # 105.

All I need to know from you is :-

What make and model of flying machine is this object likely to be found on, in, or attached to.

And to help clinch the chocolate fish deal- how about offering a likely registration.

And I guess you had better tell me purpose of this item.