I note in "A Bibliography of Archery" by Lake and Wright that Bishop wrote an article entitled "On Chinese Archers' Thumbrings", which was published in "Archery" magazine, Volume 26, Nov. 1954, pp. 10-14 and pp. 33-34 with seven photos. It was reprinted in "Archery" magazine, Volume 34, Nov. 1962, pp. 18-22 and pp. 33-34. I believe that a number of Bishop's thumbrings went to another collector, who has since passed away. I'm not sure what eventually happened to the thumbrings.