One of the finest Diamond P insulators in the hobby and this baby is mint! Filled with thousands and thousands of micro bubbles and pieces of fire brick. Just amazing! One of only four or five known and likely the best one. Super crude pinhole and overall appearance. The pictures barely do this piece justice and it's even better in person. Really love this piece but I need some cash right now so will offer if for $7000 which is less than I have in it. This piece originally sold for $9500! Truly catalog auction quality but I'll give it a try here.