1740 FRANCE ECU DAV-1330 

Specifications:
Diameter: Approximately 41mm
Weight: Approximately 27g
Composition: Silver
Obverse: Features a portrait of King Louis XV with the inscription "LUDOVICUS XV DEI GRATIA" 
Reverse: Depicts a crowned shield with the arms of France, surrounded by the inscription "FRANCIAE REX" 
Certification: NGC (Numismatic Guaranty Company)
Grade: AU55