Great example of an underrated insulator. Light green plain dome CD 105 [020] Am Ins Co Pat Sept 13 81. Four light pencil point ticks, a tiny 3/16" micronick on the base and a 3/16" open base bubble that takes out the top bar of the "E" in Sept. Lots of discussion about these oldies on ICON lately. $ 225.00 includes shipping and delivery confirmation. A donation will be made to Bill M. following the succesful sale of this insulator.