Technical description: Pine oblong box, with two loose bridges carrying 20 strings in two rows of ten (one of the rows through holes in the bridge). Tuning-pins at one end (square-headed), hitchpins at the other end (iron nails). Gut strings. Two sound-holes, diameter 36.5 (hitchpin end), 37.5 (tuning-pin end). Lid fits on the top. 31mm gap for the wind to pass through, width 660.