Large baroque serving spoon

Silver. Oval bowl, transitioning into flat surfaces, widening handle with rounded end, consistently with delicate central ridge. On the underside of the handle, the engraved initials "C.M.T.M." Handle underside decorated; hallmark in the form of a crowned scepter mark, ligated monogram "G A S" (?) as the master's mark. Weight approximately 195 g. Length 37.5 cm. A large, probably Rhineland Baroque silver spoon. Monogrammed. Assay mark with crowned scepter, ligated master's mark. Likely German, Rhineland. 18th century.