Nib: Medium 14k Conklin Toledo, Flexible
Miniature Small Sized Fountain Pen. Measures 4 5/16 inch capped Lady Conklin black hard rubber crescent-filler with Art Nouveau gold filled filigree overlay, Capped 4 1/4 " with Jewelry Ring
Roy Conklin’s great innovation was his distinctive crescent-filler, the first mass-produced self-filling pen as well as the first mass-produced pen to use a flexible rubber ink sac. The essential patents were granted in 1901 and 1903, but crescent-filler production continued until c. 1930 when the venerable design was finally retired in favor of the lever-filler, adopted by Conklin several years before.