Hey Wolf, thanks for the info. I currently own an Series I Alembic Small Standard Serial # 74-52. Through my communications with Mica, Susan and also Rick Turner I've come to believe that my bass was one of the ones Rick Turner made when he was still with them. He remembers the scalloped brass nut. I've always been fascinated with Jack and his playing. I loved The Airplane, they were simply the most intelligent and best mainstream rock band this country ever produced. He was a true innovator. And heard years after I bought my Alembic in 1974, that Jack had the very first one made. . .that monster looks heavy!