China. Photograph, 1981, from a negative by John Thomson, ca. 1870. https://www.rawpixel.com/image/13984714/china-photograph-1981-from-negative-john-thomson-ca-1870Free Image from public domain licenseCyprus. Photograph, 1981, from a negative by John Thomson, 1878. https://www.rawpixel.com/image/14020214/cyprus-photograph-1981-from-negative-john-thomson-1878Free Image from public domain licensePearl River, Kwangtung province, China. Photograph, 1981, from a negative by John Thomson, 1870. https://www.rawpixel.com/image/13998100/photo-image-plant-person-treeFree Image from public domain licenseSiam [Thailand]. Photograph, 1981, from a negative by John Thomson, 1865. https://www.rawpixel.com/image/13983405/siam-thailand-photograph-1981-from-negative-john-thomson-1865Free Image from public domain licenseNakhon Thom [Angkor Wat], Cambodia. Photograph, 1981, from a negative by John Thomson, 1866. https://www.rawpixel.com/image/14019103/photo-image-plant-person-treeFree Image from public domain licenseChina. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/14004473/china-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licenseNanking, Kiangsu province, China. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/14003131/photo-image-art-sky-oceanFree Image from public domain licenseNakhon Thom [Angkor Wat], Cambodia. Photograph, 1981, from a negative by John Thomson, 1866. https://www.rawpixel.com/image/14012682/photo-image-background-texture-paperFree Image from public domain licenseTakow harbour (Takao, Kaohsiung), Formosa (Taiwan). Photograph, 1981, after a negative by John Thomson, 1871. https://www.rawpixel.com/image/13992131/photo-image-dog-art-skyFree Image from public domain licenseCambodia. Photograph, 1981, from a negative by John Thomson, 1865. https://www.rawpixel.com/image/14009181/cambodia-photograph-1981-from-negative-john-thomson-1865Free Image from public domain licenseKiukiang, Kiangsi province, China. Photograph, 1981, from a negative by John Thomson, ca. 1870. https://www.rawpixel.com/image/13978403/photo-image-frame-art-skyFree Image from public domain licenseNakhon Thom [Angkor Wat], Cambodia. Photograph, 1981, from a negative by John Thomson, 1866. https://www.rawpixel.com/image/13973143/photo-image-palm-tree-plant-personFree Image from public domain licenseSzechwan province, China. Photograph, 1981, from a negative by John Thomson, ca. 1870. https://www.rawpixel.com/image/14003187/photo-image-person-sky-waterFree Image from public domain licenseUpper Yangtze, China. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/13997789/upper-yangtze-china-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licenseAmoy, Fukien province, China. Photograph, 1981, from a negative by John Thomson, 1870/1871. https://www.rawpixel.com/image/13985493/photo-image-plant-person-treeFree Image from public domain licenseCanton, Kwangtung province, China. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/13980483/photo-image-face-shadow-personFree Image from public domain licenseNankow pass, Pechili province, China. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/13981375/photo-image-face-person-artFree Image from public domain licensePearl River, Kwangtung province, China. Photograph, 1981, from a negative by John Thomson, 1870. https://www.rawpixel.com/image/14004667/photo-image-sky-water-mountainFree Image from public domain licenseFoochow, Fukien province, China. Photograph, 1981, from a negative by John Thomson, 1870/1871. https://www.rawpixel.com/image/13978366/photo-image-plant-tree-artFree Image from public domain licenseSaigon, Cochin China [Vietnam]. Photograph, 1981, from a negative by John Thomson, 1866. https://www.rawpixel.com/image/13987223/photo-image-plant-person-treeFree Image from public domain licenseAmoy, Fukien province, China. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/13986006/photo-image-person-music-hospitalFree Image from public domain licenseNankow pass, Pechili province, China. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/13973352/photo-image-background-person-artFree Image from public domain license The Herbert C. Hoover Building was completed in 1932 and was renamed after Herbert Hoover in 1981 … https://www.rawpixel.com/image/8040902/photo-image-public-domain-united-states-buildingFree Image from public domain licenseChina. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/13997171/china-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licensePearl River, Kwangtung province, China. Photograph, 1981, from a negative by John Thomson, 1870. https://www.rawpixel.com/image/13983169/photo-image-frame-person-skyFree Image from public domain licenseFormosa [Taiwan]. Photograph, 1981, after a negative by John Thomson, 1871. https://www.rawpixel.com/image/14015040/formosa-taiwan-photograph-1981-after-negative-john-thomson-1871Free Image from public domain licenseNakhon Thom [Angkor Wat], Cambodia. Photograph, 1981, from a negative by John Thomson, 1866. https://www.rawpixel.com/image/14007607/photo-image-background-person-artFree Image from public domain licenseAmoy, Fukien province, China. Photograph, 1981, from a negative by John Thomson, 1870/1871. https://www.rawpixel.com/image/14017159/photo-image-people-sky-public-domainFree Image from public domain licenseSiam [Thailand]. Photograph, 1981, from a negative by John Thomson, 1865. https://www.rawpixel.com/image/14009918/siam-thailand-photograph-1981-from-negative-john-thomson-1865Free Image from public domain licenseSaigon, Cochin China [Vietnam]. Photograph, 1981, from a negative by John Thomson, 1867. https://www.rawpixel.com/image/13979639/photo-image-cloud-plant-personFree Image from public domain licenseSiam [Thailand]. Photograph, 1981, from a negative by John Thomson, 1866. https://www.rawpixel.com/image/13987014/siam-thailand-photograph-1981-from-negative-john-thomson-1866Free Image from public domain licenseChina. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/13993443/china-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licenseChina. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/14007499/china-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licensePeking, Pechili province, China. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/14008093/photo-image-face-person-clothingFree Image from public domain licenseAmoy (Xiamen), Fukien province, China: the harbour viewed from Ku-lang Su (Gulangyu) Island. Photograph, 1981, from a… https://www.rawpixel.com/image/14007624/photo-image-person-tree-artFree Image from public domain licenseSwatow, Kwangtung province, China. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/13997893/photo-image-person-art-public-domainFree Image from public domain licenseThe harbour, Hong Kong. Photograph, 1981, from a negative by John Thomson, 1868/1871. https://www.rawpixel.com/image/13997937/photo-image-airplane-art-skyFree Image from public domain licenseEast Point, Hong Kong. Photograph, 1981, from a negative by John Thomson, 1868/1871. https://www.rawpixel.com/image/13980787/photo-image-plant-person-grassFree Image from public domain licenseSaigon, Cochin China [Vietnam]. Photograph, 1981, from a negative by John Thomson, 1867. https://www.rawpixel.com/image/13991467/photo-image-cloud-plant-personFree Image from public domain licenseSnowy Valley, Chekiang province, China. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/14018414/photo-image-plant-tree-artFree Image from public domain license