The Lady Caroline is one of the most classic examples of the Spey fly. William (flyspoke) does a wicked job tying flies with an east coast flavor. According to the video notes, the LC was only the second Spey fly to be recorded. Sweet! Glad it was.
As you can imagine, with a fly this old and storied, there are tons of variations out there. Click here for another version tied up by Mitch Adams and featured here on the blog a couple years back. Mitch Adams Lady Caroline Spey