Here are the three SCA J.H. WESTON LRIs that actually are on my backlit display shelves. The left one is an outstanding gray color with a milky veil running from the base on one side up and over and down the opposite side. It includes a graphite swath too. That graphite shows up in the upper right of that LRI. Purchased at a Florida insulator show from a prominent 'old timer'. The center LRI is a pretty much 'normal' SCA Weston single groove. The right one has a decent olive squiggle in it. Note the round through hole on all three.