Mahogany T-frame with three feet. Brass fittings. Boxwood arc, 0-90 degrees every 20 inches with transversals to two inches. Fleur-de-lys ornaments at ends of scale; scrolling ends of arc. Index arm with ivory edging within bracket window. Thumb screw and clamp. Index mirror, pin-hole foresight, horizon glass, 2 shades, pin-hole backsight, back horizon glass, slot for shade mounting. No box.
