The Fortress Tribute edition pen honours the Boeing B-17 Flying Fortress, a four-engine heavy bomber developed in the 1930's for the United States Army Air Corps.

The pen's barrel is designed with silkscreen graphics and each pen is individually numbered on the top ring. The chrome fittings have an aged appearance fitting of the era. Each Retro 51 pen is made from high quality materials with a strong clip making for a durable writing piece.

This pen has a rollerball refill for a smooth, bold writing experience. Simply twist to retract the tip when finished.

Each pen comes in tube packaging with gold foiling. Refills are available.