Cat. No. Maxwell-GC-FX-Matte
Maxwell Matte Focusing Screen for Rolleiflex GX, FX, FW, FT, and FX-N TLRs (new)
I sold this to a customer a few years ago who never installed it, so now it's available to you in its original unopened packaging. It's been a while since I carried his screens, so I have no idea what he's raised his prices to now, but I sold this screen for $325.
Edit: Maxwell has informed me that he sells his new screens for a ridiculous $445! He's wanting to buy back these screens, however I'd rather get them into hands of customers.