When it was made the Commodore was no. 2 in the Grabow lineup,the Eldorado was top. The Sculptura was it's equivalent in the RJR coupon lineup.
They first appeared around 1964 and were made until about 1992. Early pipes were "blasted" in a cement mixer using walnut shells. After 1966-67 they were blasted by hand using compressed air and media.