These Strathearn D4 Flower weights are of a Jumbo or Magnum size ranging from about 3.4" to 3.7". They are a spherical weight encasing an open five petal flower over three green leaves and four to five double radial latticino cane twists. Most but not all were either signed with an "S" cane or dated with a "date cane" or dated and signed with both as individual canes or together in a single cane. As an example the turquoise one is dated with a four digit 1967 center cane. According to Dave Moir, as he remembers, 1967 was probably around the first time that Strathearn began to sign or date these D4's and the four digit 1967 cane was the first use of a four digit date cane. Other dates used were a "68" cane, a "69" cane, a "70" cane and so on and if the weight had an "S" cane attached it was almost always placed on the bottom of the weight until the combined "S-date" cane was used as shown in the "S-78" weight. These "S-date" canes were used almost exclusively from 1973 on. These D4 flower weights were made in Turquoise, Madder (a reddish-pink color) and Gentian (a violet, dark blue or almost purple color). These D4's were produced in limited quanities each year but I don't know how many per year were made or if each of the three colors was also used in each year. These D4 weights were discontinued in May of 1978.