Two CD 101's with extra large bubbles... On the left is a Brookfield No 9 with a large one in the dome area, open to the inside. This one is very deformed as well. On the right is another Brookfield, with a very large sealed bubble The one on the right was purchased at an insulator show many years ago (befoe junk and deformities got popular) for 50 cents, found in a box of less desirable insulators under the seller's table.