The cane in your paperweight is Baccarat's Libra cane. It looks like a balance scale. You usually don't find them in the spaced millefiori, but they were used in the closepack millefiori or church weights made from 1959 on. Most, but not all, of the spaced millefiori weights have a date cane that can sometimes be hard to decipher. A sample signature cane is below
In 1951, a large closepack weight dated 1853 was found in the cornerstone of the parish church in Baccarat during restorations at the church. The church had been damaged during World War II. This rekindled an interest in making millefiori paperweights at Baccarat and the modern production of closepack weights started in 1958. These new paperweights were called Church weights after the newly discovered antique weight. The 1958 version had a figure 8. Weights made after 1958 had a complete set of the signs of the zodiac and were signed with a date cane as well.