This is a pair of Hemingray glass insulators with a very deep blue color.
It is Consolidated Design code CD154. One has a minor chip missing and a few of the drip points are chipped. The other has a small chip, a crack and a few chipped drip points. All defects are shown in the photos. Otherwise they are in very good condition.
They have sharp drip points on the base and are 4 ½” high and about 3 ¾” in diameter.
$15 for the pair.