The master's mark 'FW' corresponds with Fredericus Wery, member of a family of silversmiths working in Maastricht. The year mark X within a rosette corresponds with the years 1712-1715.
For a similar mounted ewer see Lunsingh Scheurleer, op. cit, p. 386 ill. 404 and Daendels, op. cit, p.67 ill. 95