A small collection of four 19th century silver vinaigrettes

A small collection of four 19th century silver vinaigrettes,

comprising: one by Thomas Bartleet, Birmingham 1820, rectangular form, engine-turned decoration, reeded sides, plus one by Nathaniel Mills, Birmingham 1840, engraved decoration, one by Simpson and Son, Birmingham date letter worn, with wriggle-work decoration and one other engraved, approx. weight 2.3oz. (4)