This was my fountain pen day pen that I made for myself. Instead of buying a pen on Nov 1 I made myself one. I wanted something fun and unique and I love how this turned out. It has a nib section made of celluloid acetate in a golden brown and blue, added a translucent blue ink window, a dark blue section with a clear yellow section and acetate bottom to match the nib section and a clear yellow cap. Love how it turned out. It is fitted with a bock #6 red lacquered nib. This was crazy fun to make and I am enjoying using it.