Insulators as follows -- actual postage additional:

CD 145 no embossing (Pennycuick) - heavy piece in a great blue shade with an amber stringer and a couple cool bubbles -- a small potstone bruise is the only issue -- $25

CD 145 no embossing (Pennycuick) - heavy piece as most are -- gray aqua filled with tiny bubbles -- only issue are a few flat base flakes -- $45