This sale is for an very rare, really excellent condition Bronica SQ grid focusing screen – suitable for all Bronica SQ series cameras (SQ, SQ-A, SQ-Ai, SQ-Am and SQ-B).
It has just a few light marks along one edge, not too intrusive, but is otherwise unmarked. You don’t find too many of these for sale!
This screen would be great in its own right as a focusing screen, or as a replacement for your existing damaged screen. Try finding another one!