Montblanc Pen Line Noblesse Oblige has been released by Montblanc in many different versions, and the version you are seeing in the picture comes in a very rare blue color – Navy blue.
Traditionally made of resin, along with gold-plated metal details, this pen model brings a nostalgic beauty, suitable for those who love Montblanc's classic pens.
Product information: https://butchinhhang.com/san-pham/but-montblanc-noblesse-oblige-navy-blue-ballpoint-pen/