Thanks for the compliment re my eye, and thanks to Gareth for the date. I have to confess I wasn't sure that the stopper was a marriage so I just said it wasn't the same one as in the catalogue I looked at from 1939. As yours was made in 1951, I wouldn't be totally surprised if Orrefors had changed the stopper. One of the eBay decanters is from Replacements, who have a very good reputation. The engraving on yours is so much nicer on the 1975 golf decanter.