Representatives of Tibet, Great Britain, and China at Simla Accord 1914. Front row, from left: an assistant to Ivan Chen; Sekyong Trulku, Prince of Sikkim; Ivan Chen, Chinese plenipotentiary; Sir Henry McMahon, British Plenipotentiary; Lonchen Shatra, Tibetan Plenipotentiary; Teji Trimon, assistant; Nedon Khanchung, Secretary.