"19th Century Bell Tower Movement By Abraham Roy"
Rare bronze bell tower clock mechanism, some parts in iron, seemingly complete, which bears on a small enamel dial the inscription Sainte-Austreberthe, place of manufacture of the movement, from where the Swiss bell maker and clockmaker Abraham Roy came from, founder in 1818 of the company still existing under the name of Biard-Roy. The dimensions indicated are without the table. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato