The Mohan Veena. Vishwa Mohan Bhatts' innovative archtop guitar with 3 melody strings, 4 drone strings and 12 sympathetic strings - a few minor modifications to enable him to play classical indian music on a guitar.
The Koto 箏 is the national instrument of Japan. Koto are about 180 centimetres in) length, and made from kiri wood (Paulownia tomentosa). They have 13 strings that are strung over 13 movable bridges along the width of the instrument.