Flat round sterling silver Rooster Paris goldsmith Rion sterling silver plate XIX

Very nice flat round sterling silver, stamped with Rooster (first as Paris), punch Guarantee stamp of the association of goldsmiths and silversmith punch SSR Sixtus Rion Simon (1807 -), monogrammed on the back , vintage early nineteenth century.
This dish is in good condition. It is monogrammed on the back (in two places)
A note: some scratches and shocks in the background, time wear, see photos.