Round yellow-metal glass-fronted reliquary theca housing the first-class ex ossibus (of the bone) relic of Saint Maria Domenica Mazzarello. The relic is affixed to a red silk ground surrounded by silver wire and gilt paperolle ornamentation and identified in Latin on a typeset cedula label as Ex ossibus // S. M. Mazzarello Virginis (of the bone of Saint Maria Mazzarello, Virgin). On the back, under a protective cap, the theca is secured with a seal of red Spanish wax bearing an imprint of a coat of arms of the Salesian Sisters of John Bosco Order. The relic is accompanied by the original matching authentics document issued and sealed in 1992 by the Postulator General of the Order responsible for the Causes of Canonization.
Saint Maria Domenica Mazzarello, FMA (†1881) was the Italian founder of the Salesian Sisters of John Bosco. She was beatified on November 20, 1938 and canonized on June 24, 1951. Her incorrupt body is venerated in the Basilica of Our Lady Help of Christians, in Turin, Italy. A church in southeast Rome bears her name, Santa Maria Domenica Mazzarello. Her feast is commemorated on May 13.