Yes, this is an authentic vintage French escargot (snail) plate.The markings on the underside of your item indicate several key features typical of vintage French bistro-style serveware:Origin: "Made in France" confirms its authentic French manufacturing.Material: "INOX" is the common European term for stainless steel (specifically inoxydable).Quality: "18%" refers to the chromium content, which provides the plate's corrosion and rust resistance.
Design & Composition: This six-hole, round stainless steel design with dual integrated handles was a standard style for French bistro and home serveware throughout the 1940s to 1970s.