I picked this one up as an unidentified hammered a couple of weeks ago.
Obverse: HEИRICVS.R/EX
Reverse: +HALLI.OИ.RVLA
Same dies as Brand1020. It was very cheap for a full Rhuddlan in any condition (judging by recent auction prices where I've missed out on a couple) so I don't think anyone else spotted it.