Valadier, Disegni e spiegazione della fonderia, Luigi Valadier, 1 January 1786

Transporting the finished bell through the streets of rome. From: giuseppe valadier: design and reflection of the fonderia: principle and appointment of the camp of san petro, the cave. Luigi valadier and giuseppe di lui figlio nell'anno 1786. Roma 1786. Date: 1 January 1786.