I often see an orange space-frame Moulton bike locally, a treat every time. A friend has a couple of early ones. The VERY early ones were riveted not welded. Am enjoying the book, he's just started at Bristol engines to gain some experience prior to joining the RAF as an engineer but has done such a good job he's now in a reserved occupation as a designer. I'll be looking at the full Rolls Royce Heritage Trust book list.