PenBBS Fountain Pen 487 111 Magnet Filler Winter Night

The PenBBS Model 487 uses a unique magnet filling system, this filling system first appeared in the 1950s.
The piston might get stuck sometimes during the first use, you can disassemble the grip section and use a stick to move the piston. After disassembling applying some silicone oil to the piston will improve the mechanism. Please note that because of the water pressure, the piston won't move when there is ink or water inside.