This is a replica of instruments found in Maltese churches - some dating back to the 18th century.
Similar instruments are to be found in the Cathedral of Mdina, in the Carmelite Friary, Mdina, Church of St Paul and Ta' Giezu in Rabat, Zabbar, Siggiewi parish churches, Gharb parish Gozo, the Franciscans in Rabat Gozo.... http://www.independent.com.mt/articles/2007-04-04/news/grinding-judas-bones-1-171593/
Ara Campus FM, Rittmi Mlewna,
Intervista ta' Silvio John Camilleri, 22.31-33.52