Thanks for your input Dudley. 51R9 has definitely got some strong similarities to mine. The horizontal dash in the ornament is a good marker. Looking at the example shown for 51R9 in the Franklin Archive I'm a bit bothered by the lack of completeness in ornaments P, Q & R on the right on their copy compared to mine as well as where the bottom line ends on the right side.
I'll keep looking and use that dash as a key in my next pass of the Type V realm.
