Kraken's Keepsake Brass Patina - Bolt Action Pen by Bastion®This pen is raw metal brass with no coating to protect it from oxidation. Oxidation forms a patina on the pen, which is a primary reason buyer's like raw metal brass. We include this information here so buyer's are able to make informed choices prior to ordering. We also include an information card in pen explaining oxidation and patina so they understand the care required post purchase. It is the buyer's responsibility to manage expectations out of