Good one Bobby De La Rue.
I concur. Specialised BS30c, plate 90, heavy outer frame lines (major retouching).
The imprimatur shows the difference in the strength of the right and left frames and the extension in the Northeast corner.
I think the wiriting is not
PL88 BHND A REDRAWN REDRAWN FRAME LINES
PL88 Q AND A REDRAWN
REDRAWN FRAME LINES
It was, incorrectly identified.