This is a pre-owned Lamy Swift Blue Rollerball, and comes to the shop from a private collection without box/papers.  

The LAMY swift is a rollerball pen whose straightforward design is full of thoughtful details. It combines the pleasant writing feeling of ink with the robust functionality of a biro. The interaction of clip and pusher is particularly ingenious: when the refill is pushed out and ready to write, the clip retracts to prevent accidental insertion. Inside the LAMY swift, the best rollerball refill on the market, the LAMY M 66, ensures a smooth and fluid writing experience. The durable all-metal casing features punched-out structures on the grip section: they not only serve as a visual focus, but also provide a comfortable grip while writing.