It looks to me very close to a repetition sign, is there a Postscript definition somewhere (which can be tweaked by someone having more knowledge than me:-))?
> Am 22.08.2021 um 13:41 schrieb Paul Hodges <p...@cassland.org>: > > Encouraged by the fantastic responses to my first problem, I now offer my > other issue. > > The composer uses a special barline to mark the phrase pattern of a piece. > The form of this barline is like this: > (MS) https://cassland.org/images/PhraseBarMS.jpg > (Printed elsewhere) https://cassland.org/images/PhraseBarSet.jpg > > In this case I can't even think where to start... > > Thanks, > Paul