The secret of Jack Duckworth's specs

I have no idea what this is or where it came from, all I can say is thank you to fellow blogger Citizen Timepiece. Is it real or is a laugh? Have you spotted any other mad Coronation Street items on th'interweb? Do let me know and I'll share it with other Corre fans on this blog and I'll always give you a mention and a link, because that's the lovely sort of sharey-nicey blog this one is.