Martin Codina runs an estate liquidation business in the San Francisco Bay Area. In 2011 his firm was responsible for a Berkeley/Oakland estate that had a very nice general collection of insulators, including a strong selection of Cals that I was very interested in obtaining. After pumping me for information and getting from me several offers for the whole collection, that collection "disappeared."

There were few pieces that would automatically identify the collection, but one of them was this CD 253 with what appears to be two long nails in it. I never saw the collection in person, just some very good on-line photos. So has anyone seen an insulator collection for sale/auction with this particular piece?