Shots from the field—e.g., archive, library, museum, workshop.

Gun inscribed with "Chosŏn" presumably used in the East Asian War of 1592–1598, gifted by Toyotomi Hideyoshi to Horio Yoshiharu, MET Museum

Lixivation vats, 19th century Japan

Map of Beijing, copied by a Korean painter, 19th century, National Library of Korea

Niter bed in Germany, 1580, Bavarian State Library

Ivory scaphe dial made by officer-manager Kang Yun (姜潤, 1830–1898). History of Science Museum, Oxford, England.

Drawing of an Elephant, National Museum of Korea

World map with Aristotelian celestial spheres, 19th century, National Library of Korea

Depiction of a "Westerner," National Museum of Korea

Korean Map of Japan (19th century), National Library of Korea, 2019
Disassembled Malaysian gun lock, home workshop, 2019

Map of East Asia, 19th century, National Museum of Korea

Shown are mechanical clock and eyeglasses among others, Portrait of Yi Haŭng (1820–1898), Painted in 1869, Ink and color on silk, Seoul Museum of History.

Astrolabe made for Yu Kŭm (柳琴, 1741–1788), Sirhak Museum, 2018
Chosŏn (also note the crab), Korean Map of Japan (19th century), National Library of Korea, 2019

Dutch & Chinese ships, Korean Map of Japan (19th century), National Library of Korea, 2019

Portrait of Yi Sam (李森, 1677–1735), Ancestral home, Nonsan, 2018

Garrison Records, Changsŏgak Archives, Seongnam, 2018
Measuring bores, National Museum of Korea, 2018

Disassembled Korean musket barrel, home workshop, 2019

Stone staircase, Chichen Itza, 2011

Temple, Chichen Itza, 2011

Rare nanyin music score, Quanzhou, 2011

Scrapbook, Kyujanggak Archives, 2014

Turtle-shaped stone with inscriptions, Kŏchang, 2012

Steles, Qingjing Mosque 清淨寺, Quanzhou, 2011

Chosŏn Military equipment, Museum of Ethnology, Leiden, 2018

Chosŏn diplomatic envoy to Japan, Tsushima, 2013

Korean pine transplanted by Japan-raised Kim Yŏch'ŏl (金如鐵, aka Wakita Naokata 脇田直賢, 1585–1660), Gyokusen-en, Kanazawa, 2014
Ivory diptych sundial, by Leonhart miller (Nuremberg, c. 1636), Harvard Science Center Museum, 2019

Ottoman cannon captured by the Portuguese, Lisbon, 2018

Ceylon barrel, 16th cent., welded breech with tang, Lisbon, 2018

Prototype of a powder milling machine by the Bacarena shop, Lisbon, 2018

Portuguese clay pot bomb, Harvard Houghton Library, 2018

Stone inscriptions, Sillok archive of T'aebaek Mountain, 2018

Architectural plan for the Robust and Brave Guards (1799), Janseogak Archives, 2018

Gunpowder flask (adapted from Chinese porcelain), Fuerte de San Diego, Acapulco, 2017

Scholar’s Studio behind a Leopard Skin Curtain (19th century), Ink and color on paper, Leeum, Samsung Museum of Art

Pocket compass and sundial, Science museum, UK

Disassembled Korean musket, author's collection

Jade seal made by Ch'oe Ch'ŏnyak, 18th century, National Museum of Korea