1870: Hotz collection: Guangzhou, Kin-Shan ca. 1870
1870: Hotz collection: Mandarin's Wife, by Lai Fong, ca. 1870
1870: Hotz collection: Hong Kong Opium Merchant, by Lai Afong, ca. 1870
1870: Hotz collection: Hong Kong young woman (Tanka?), ca. 1870
1870: Hotz collection: Hong Kong, Central Praya, ca. 1870
1870: Hotz collection: Hong Kong, Pokfulam Water Reservoir, ca. 1870
1870: Hotz collection: Hong Kong Public Gardens, ca. 1870
1870: Hotz collection: Hong Kong, Victoria Hills and Causeway Bay, ca. 1870
1870: Hotz collection: Two Young Hong Kong women, ca. 1870
1870: Hotz collection: Hong Kong Guangzhou Merchants & Compradore, ca. 1870
1870: Hotz collection: Hong Kong, Central Praya, ca. 1870
1870: Hotz collection: Hong Kong Happy Valley Race Course, ca. 1870
1873: Hotz collection: Hong Kong, Chinese Exhibition, 1873
1880: Hotz collection: Hong Kong, Town of Victoria, ca. 1870
1896: Holland China Syndikaat, founding document, 1896, p. 1/3
1896: Holland China Syndikaat, founding document, 1896, p. 3/3
1896: Holland China Syndikaat, founding document, 1896, p. 2/3
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - Nine Chinese Lady Musicians sitting under a tree
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - two men fishing
1900: Hotz s'Jacob & Co.: 1900 trade mark registration- man, woman and stork
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - flowers and fruit
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - dancing man holding a coin
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - flower and butterfly
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - two ladies from Hunan
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - traditional archery
1900: Hotz s'Jacob & Co.: 1900 trade mark registration - woman, man, horse
1901: Hotz s'Jacob & Co.: 1900 trade mark registration - Chinese woman and child
1903: Holland-China Trading Company: 1903 founding document
1960: Holland-China Trading Company: 1960 stamp Photostat, Hong Kong Photocopy Service