【Brand】Chromatic USA 【Product Name】Unknown 【Barrel Color】Silver, striped pattern 【Ink】Red & Black This is a two-color ballpoint pen from Chromatic. It is likely from around 50 years ago. I tried to test the pen when listing it, but it was not possible to write due to the age of the pen. Chromatic has already gone out of business, and because the refills are longer than the 4C standard, there are no replacement refills available. You could either modify a current 4C refill to extend it and make it usable, or keep it as a vintage collection for display. The length of the refill is 9.7cm. Please consider this information before purchasing. ↓ Search tags #Pilot #Pentel #MITSUBISHI #Tombow #Sailor Fountain Pen #Platinum Fountain Pen #Zebra #Corona #Lion #Newman #Uchida #Kokuyo #Uni Parker #Stabilo #Faber-Castell #Pelikan #Rotring #Staedtler #Kaweco #Aurora #Porsche Design #Twsbi #Montblanc #Cross #Lamy #Sheaffer #Wood Barrel #Nohara Kogei #Wood Craft #Kobo Setsugi