Blenko Art Glass #68D paperweight

Blenko Art Glass #68D paperweight, of door knob form and with a trapped air twist interior.

Designed in 1968 by Joel Myers. The #68D is not shown in the 1968 catalog with the A-C numbered paperweights, but it does appear in the 1969 and subsequent Blenko Catalogs with the others.

Size: 4-1/4" high.