Conklin Crescent Filler 3NL and 4NL black hard rubber fountain pens, circa 1920’s. 3NL smooth hard rubber fountain pen with clip, fine 14K Conklin 2 semi flexible nib along with 4NL chased hard rubber clipless fountain pen, fine 14K Conklin 4 flexible nib. Length 5 3/8-5 1/2 inches, filling mechanisms Crescent fill. Overall good condition, some wear to case and trim, some discolouration to hard rubber.