Esterbrook Estie Oversize Fountain Pen - Sea Glass GTThe Esterbrook Estie Sea Glass is physically and chemically weathered, frosted, smooth pieces of glass found on beaches along bodies of salt water. The Estie Sea Glass is offered in both gold and palladium finishes, and designed in a standard size and oversize. Mother Natures own polishing gives them their characteristically smooth, frosted texture. This fountain pen is equipped with a #6 JoWo steel nib. This pen fills via standard international