Actually jojo as I understand it the Mug promotion happened in 1999 less than a year after Mug was introduced. They wrapped about 25 vintage Beetles and some of the new generation of Beetles (which prompted the promotion) to promote the brand. I didn't find a breakdown of the alleged 25 vintage Beetles in question however. As for their value that's hard to say. For most the vintage Beetles, your two 1969's for example have value based on the fact they are restored with low mileage and the fact they have the Mug wrap may actually hurt their value. To others the sheer rarity of these cars gives them added appeal. The best shot you have is to search out Beetle collectors on the web or simply throw it up on ebay and se what kind of response you get. Good luck!