If You have a Black Lightning to sell, we don't recomend that You restrict Yourself just to insert an ad in the local newspaper or put it on e-bay....
When Sivert sold his Black Lightning he had a professional brochure made, that he could send to prospective buyers.
Few buyers consider buying anything in this price level without first gathering all possible information and documents about the bike.

Here is the brochure of Sivert's Black Lightning.

News paper clip: The first race 1950
Photo: First assembly at the Danish dealer 1950
News paper clip: The second (and final) race, June 10 1956
The final pages of the brochure included a number of articles in danish local newspapers from first and second race. They are in danish (no translation). To see them, click the button. Click here to see the four articles in local newspapers from 1956.