0512 1/2 Baby Safety - 1908-1929 - This is one of many Safeties that Waterman made. This pen is interesting in that it is the size of a ladies pen but does not have a ring top. These pens are filled using an eye dropper and then using the cap like a bottle top to seal the ink in. When the nib is fully extended then the barrel is sealed with the ink inside and the pen can be used. I was fortunate that this pen came with it's original box and eye dropper.