A lacquered brass pair of Gunner's callipers, signed M.Berge London, further engraved and divided with scales for Quantity of Powder for filling the Chambers of BraSs Mort.s & How.s, BraSs Mortars, Howitzers, BraSs guns, Iron Guns, the axis with scale for shot size, and with protractor scale divided 0°-180°(x2), the pointers with iron blade inserts, in fitted faded blue velvet lined leather case inscribed in ink Ass,t Com,y Hutcheson Field Train of Artillery 1814 - 7½in.(19cm)long