CAC, from what I found, was made by Lennox with the silver overlay by Gorham Silver !! Most are listed as wine or cider jugs and is likely from around 1900 !! The cork could have been made anywhere I guess !! I would get an appraisal on it but make sure you take the note with it, the note is the important part !! It could prove that it came from Andrew Mellons art collection which can add to the value !!