It is marked with "Crowned R" Hanau marks for Friedrich Reusswig, who was active from 1903 to 1926; Hanau marks are famously diverse; not sure of the "Crowned C". Likely made in Hanau Germany circa 1910.
Beautiful Hanau German Silver Antique Tea Caddy Putti Repousse c1900 : 145g
Vintage German RED signed Sterling Silver 925 Handheld Magnifying Glass
Antique Art Nouveau German Cut Crystal Vase 800 Sterling Silver Rim
GERMAN 800 SILVER MINIATURE DOLLS HOUSE TOY CHAIR 1900 ANTIQUE
Vintage Hildesheimer German 800 Silver Rose Demitasse Spoons Set of 4
Vintage German metal silver-plated bowl sugar bin made by BBI Prasent