This is a Franklin Christoph Model 31 Omnis Antique Glass Fountain pen with a 14K EF Flex nib. The Antique Glass is really beautiful. It writes from a XXXF to BB mostly smooth the whole way. It can be used as an eyedroper pen, which I think looks the best. You will need to put silicone grease on the section and barrel thread area Franklin C. Provideds online instructions and I will put some silicone grease with the pen. It can also use a converter or cartridge. I will include the converter. It comes with the original leather case and packaging and the lifetime guaranty. These pens are very rare. Pen specific form FC are below. 625 cap diameter (15.87mm). 531″ upper barrel diameter (13.49mm) 5.50″ capped length (139mm) 6.755″ cap posted length including nib (172mm) 5.250″ barrel length including nib (133mm). 42 grip section at thinnest point (10.67mm) Weight without ink =. 83 oz / 23.5g. The Model 31 encompasses features from several F-C models. The grip section is like that of the 40 Panther, the silhoette is a slightly slimmer version of the 19, precision posting like the 20, 45, and 03, cut grooves and recessed nib like the 20. Made in USA of long lasting, durable hard acrylic that is light weight. Standard Int’l Cartridge / Converter filled, converter is included. Also can be used as an eyedropper. For eye dropper instructions, visit our How To Page. #6 Size nib 14k EF Flex. The item “Franklin Christoph Model 31 Omnis Antique Glass Fountain Pen, 14k EF Flex nib” is in sale since Friday, July 26, 2019. This item is in the category “Collectibles\Pens & Writing Instruments\Pens\Fountain Pens\Other Fountain Pens”. The seller is “upchanter” and is located in Portland, Oregon. This item can be shipped worldwide.

• Vintage: No
• Country/Region of Manufacture: United States
• Nib Size: Extra Fine (EF)
• Material: Resin
• Brand: Franklin Christoph
• Nib Material: Gold, 14K