A late 18th century Belgian mustard pot

A late 18th century Belgian mustard pot, pair of salts (blue glass liners) and a two bottle cruet frame with matching pierced decoration and ball and claw feet, the frame with a stem handle surmounted by an urn and ring handle with two associated blue glass bottles decorated with gilding by two makers, "AR" & "JS" 1784/86 townmark unclear, height of cruet frame 11.75in (30cm), 27.5oz weighable silver.