5) Safety pen, Caw´s 1898 , Waterman 1905 back
 

The wellknown pen with the retractable nib. The idea to withdraw nib and feed eliminated the uncomfortable unscrewing of the grip section of the eyedropper. By retracting the nib, it is open like a bottle, ready to be filled like an eyedropper. The threaded cap closes the reservoir tighly. This drastically improved the pen, as it was the first perfectly closed pen.

safety1gr.jpg (29744 Byte) cawsgr.jpg (28474 Byte)
The classic safety filler, as it was first designed by Waterman. CAWS Safety Filler, the first safety filler, it uses the cap as the key to operate the safety mechanism.