https://www.express.co.uk/showbiz/tv-radio/1190534/Antiques-Roadshow-John-Donald-Victorian-topaz-necklace-valuation-Joanna-Hardy-BBC-video
https://www.express.co.uk/showbiz/tv-radio/1190534/Antiques-Roadshow-John-Donald-Victorian-topaz-necklace-valuation-Joanna-Hardy-BBC-video