Hi everyone, from the last reply, and thank you for that, It seems the stock photo I used may be misleading, as although it looks the same style, the actual capstan I have stands 14" high and I would guess the rope would be thinker than 5/16 and the chain drive at the base looks to be for quite a substantial chain. What I will do when my lad is back tues I,ll get him to post a photo of the actual item. As although I love all things vintage marine, that love doesn't extend to computers. I must say this item has given me and the lad a buzz, fancy finding a classic herreshoff item possibly from one of those beautifull yaughts in an old antique shop here in the uk and thanks for all the help so far. Mike