I used to pick up bags full of insulator shards but now just some of the larger pieces with embossing. Here are examples of a CD 132, CD 126.4 and CD 133.3. The 126.4 W.U. are fairly common but this one is a darker aqua than most. The most common 1871 shards are CD 120 skirt embossed and CD 125. Nearly all in pale light aqua.