<p>A few minutes into this I am joined by the NSU's owner, Dr. Virgil Elings, who guides my tour in detail. There were only six produced in 1953-54, four now reside in the Audi Museum and the other two with Dr. Elings, who is famous not merely for an amazing vintage motorcycle collection (and Moto Solvang museum) but also for being very involved with the electron microscope's development.</p><div></div>