Blenko Glass #706 Optic Vase in 1971 Charcoal . The #706 was designed by Joel Myers, added to the catalog in 1970, but this vase is 1971 charcoal. It's about 6 3/4 inches tall and about 5 1/2 inches at the widest part. The optics in the vase are very nice. There is a fire polished pontil mark. There are no chips, cracks, or water damage.