Leica Series 5.5 Filter Holder/Drawer for 280mm f/2.8, 280mm f/4.0 & 400mm f/2.8 R-Lenses

This is a Leica Series 5.5 filter holder (Drawer). This replacement filter drawer will accept Series 5.5 (S5.5) filters, for the 280mm f/2.8 (#11263), 280mm f/4.0 (#11261) & 400mm f/2.8 (#11260, 11360) Apo-Telyt-R module lenses.