A small collection of four 19th century silver vinaigrettes

A small collection of four 19th century silver vinaigrettes,

comprising: one by Wardell & Kempson, Birmingham 1805, the cover engraved with an image of the Round Tower at Windsor Castle, one by Tye & Kilner, Birmingham 1826, flat rectangular form, engine-turned decoration, pierced and engraved foliate grille, plus one by Cocks and Bettridge, Birmingham 1811, grille a.f, and one by Matthew Linwood, Birmingham 1808, approx. weight 1.9ox. (4)