Gents - I recently took delivery on an older, but near new 41 - 240 SWC PB 2 cavity mould. I've been casually looking for one for a few years. I was very excited on it's arrival to see that it appears it was smoked, never used at all and put away in it's original box, which is stamped in red ink with 90332. I have purchased several Lee's over the years, starting in high school nearly 40 years ago. Today I decided to "inventory" my Lee's and put together a list of what I have on hand. I found 2 older single cavity ones, which do not have the typical 5 digit Lee number on them. Does anyone know when Lee started their numbering system for the moulds or know of a source for referencing older Lee's? I located an older post by Uncle Grinch on a list of mould numbers, but looking to find additional info, if any is available - Thanks for your time - Bill in MA