A green enamelled artificial horizon signed Keuffel & Esser Co.N.Y., with windscreen, mercury bottle and trough, in fitted mahogany case - 8¼in.(21cm)wide; a lacquered brass hydrographic surveyors scale/straight edge signed Hughes London in fitted case - 28¼in(72cm) wide; and a part marine floating card compass, the compasss rose signed S.Thaxter Maker State Street Boston - 7in.(17.8cm)diam (3)