One of the most striking features of Queen Adelaide’s frock in this week’s Rate the Dress is her glorious blonde lace sleeves. Perhaps you’ve read a Georgette Hayer novel and come across a description of the heroine heading out to a dinner party in a dress trimmed with blonde lace and wondered what that meant? Maybe you already knew! If not, wonder no more. ‘Blonde’ is the term used to describe the natural colour of undyed silk, and blonde lace was originally the name for a specific style of…