"De Grote Cap" is a 75 key Decap Antwerpen street organ that has seen many alterations throughout its life, both musically and in terms of its appearance. Its owner commisioned the NBC to return this organ to a point near its original state. This meant that the facade had to be largely rebuilt using old pictures and by careful examination of the many layers of paint. New carvings and paintings were also made to replace the missing ones. The Harmonic Flute and Carillon registers were reinstated. A complete restoration of the rest of the organ was also carried out.