I found the image below on eBay. The bidding has ended, but I”m sure it will return. I thought it looked very similar to Brian’s CJ-3B (or former CJ-3B — did you ever sell it?). After located a pic of the CJ-3B, I concluded it must have been used as the model of the drawing.
One image below is the drawing and one is a shot of the CJ-3B from the CJ-3B page (See more pics of it there — It’s a beauty!).
According to an old ebay listing, this particularly drawing is a run of 250 prints of a drawing by artist Duke Edwards. I didn’t know who Duke Edwards was, so I did a google search and found the information below from the ‘Automotive Art Gallery‘.
“Duke has been “doodling” for almost 40 years but had limited his clientele to friends and local car clubs. Since making his work available to the public, he has received international recognition and has pieces on museum display as well as in private collections. For just “doodling” Duke is amazingly talented.”