The Bulk Filler system developed by Francis and produced by Conid is based on a positive-displacement filling principle that uses the maximum ink capacity in a small space and was introduced on the first production batch with 60 demonstrator models. Clip, cap closure screw, filler knob, cap ring and threaded ring are made of titanium in the final version. Detail pictures, sourcing and pricing information are available on conid.be and in the detailed English-language presentation in the Fountain Pen Network forum; orders and price enquiries run directly via werner@conid.be.