This Carina has been done in a 1920s - 1930s vintage Cellulose Acetate that features pearly blues grays and silvers in a black matrix. A really stunning vintage material. The cap has been done in a modern black acetate and is trimmed in hammered white bronze trim including a two piece, hand made clip that has been given a bright polish.
This is my standard 14mm Carina and most people would classify it as a classic oversize pen. The nib is a Jowo #6 in your choice of finish and width. The nib photographed with the pen is a Rhodium plated Broad.
This is a cartridge converter pen but it can also be used as an eyedropper with a little silicone grease on the section threads.