I recently acquired a bunch of pens after my grandfather passed. I had been using a Montblanc rollerball I found in a rental car. I filled a Parker 75 with ink and now have become enamored with fountain pens. I have a 1950's Pelikan 400 in a beautiful tortoise shell green that I filled with ink. It leaked all over and after investigating the clear plastic collar that holds the nib and the feeder was cracked in two. Is there somewhere I can buy just the collar that would fit? I am looking for a cheapish DIY repair but have had no luck thus far. Thanks for your help and I have a feeling pens might be my new fetish as a found my RAD killer recently...