Just to confuse things. There is a puzzle car on here called Projecta. The only image is a sketch. The surrounding text does not actually call it Projecta, and the address was written later, not printed in the article. The text description does vaguely resemble that of the car by Percival White (where did the hyphen come from?).
Presenting, the Projecta by Percival White, as shown in Light Car and Cyclecar in 1914: