Jamie Clay was at the Royal Thames Yacht Club for the Classic Boat Awards for his restoration of Albert Strange's Charmina, and noticed on the wall of the club a half model of Tally Ho (Originally Betty ... see the history on her website https://www.yachttallyho.com/index.php/about-tally-ho). and took a couple of photos.
We don't know what colours she was in the early days. I wonder if these are indicative. It was 107 years ago, so I suspect not.
I think this must be the hull without the bulwarks as the doesn't, to me, look high enough to have include latter.