In 1992 Delta through a collaboration with Momo Design was the first manufacturer to utilize titanium and carbon fiber in the production of writing instruments. In 2012 Momo design celebrated its 30th Anniversary and the two companies once again joined forces in the creation of a groundbreaking collection of writing instruments. The original Momo 30th Anniversary Limited Edition collection is now virtually sold out but just in time Delta has added 3 stunning colors featuring new materials and new lower prices!All pens in the collection feature genuine carbon fiber and are accented with black rhodium trim. Fountain pen features Delta flawless internal piston filling mechanismand is now fitted with the groundbreaking 18K fusion nib Medium grade. Each pen in the collection is individually numbered and limited to 981 pieces.