Scope and Contents: Account book of the Verwalter der Poesenischen Koeniglischer Doman (Manager of the Royal properties in Polsen, Germany). Max Weiske, presumably the keeper of the account book, was a relative of Professor Leonard G.R. Langer, who donated the materials in 1957. On the first page of the account book is a printed guarantee by the bookmaker J.C. König & Ebhardt (of Hanover, Germany), that each page contained in the book is a factory mark which means that the paper is rag-free, making it...

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A bound volume of Polarized Light's financial records.

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Correspondence; city map of Tientsin; translation of English newspaper articles in China; construction progress report with particular attention to bridge across the Yellow River; translation of a Japanese newspaper article.

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Correspondence regarding contract negotiations, especially among German banks, and among the banks and the German and British governments; bilingual meeting minutes (English, German).

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Correspondence regarding contracts and negotiations; correspondence concerning the management of the railroad

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Correspondence regarding contracts, negotiations, and management issues; four hand-drawn maps depicting possible railroad lines and branches; engineering decisions concerning the Yellow River crossing; survey notes on possible routes, including lists with place names with Chinese characters; and price lists for building materials.

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Correspondence; draft contracts in English and Chinese; maps; translations of letters from the Chinese Foreign Affairs Office; contract for formation of the railroad company “Gesellschaftsvertrag der Deutsch-Chinesischen Eisenbahn-Gesellschaft m.b.H.” from April 21, 1903.

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Correspondence; translations of official Chinese correspondence; draft contracts; newspaper clippings; letter in Chinese detailing the Chinese protests about the route of the railroad.

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Correspondence; draft contracts; newspaper clippings; correspondence between Chinese and German governments regarding increase in commerce.

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Correspondence; draft contracts; newspaper clippings; meeting minutes on new contract negotiations

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Correspondence; meeting minutes; newspaper clippings; translations of Chinese newspaper articles; documents; telegrams and letters; telegrams from and to the Foreign Office in Berlin, usually deciphered, several include codes along with decoded text.

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Correspondence; Chinese letter with draft agreement along with translation; telegrams; translations from Chinese newspapers; report of the Chinese envoy in Berlin about audience with German Emperor; draft contracts, original Tientsin-Pukow Railway agreement (signed January 13, 1908).

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Correspondence; telegrams; newspaper clippings; translation of Chinese newspaper articles; notes of meeting about coal mines; Chinese letter to the syndicate; map with location of Tientsin train station

Scope and Contents: Correspondence; translations of Chinese newspaper articles; detailed progress reports; newspaper clippings; table of allocation of capital expenditures for specific sections of the railroad; two detailed maps with all villages in vicinity of railroad; map for the section Tientsin to Tsinanful; map for border station in Shandong province to Pukow (near Nanjing); cost estimates for branch lines for mining purposes. Starting with 1909-1910 Chinese characters are usually added to Chinese names...

Scope and Contents: Correspondence; detailed progress reports; translations of Chinese newspaper articles and Chinese official government reports; detailed map; printed train schedule for the completed section Tientsin – Techou (in German); train schedule, Pukow to Luhuikwan (in English); supplementary loan agreement. Booklet in Chinese with the title Zhang Wenxiang gong shi lüe – A short biography of Minister Zhang Wenxiang (biography of Zhang Zhidong張之洞, September 4, 1837 — October 5, 1909). A...

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Materials relating to potentially patentable concepts, including correspondence, notes, and diagrams, often including the signatures of several witnesses.

Scope and Contents:

Materials relating to potentially patentable concepts, including correspondence, notes, and diagrams, often including the signatures of several witnesses.

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Correspondence; translations of Chinese newspaper articles and official government reports; newspaper clippings; travel report from trip along the railroad with 25 photographs; maps; annual reports of the railroad company for 1911 and 1912 (in English).

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Bound manuscript by Müntz describing the Dutch silver and copper smelting works located in Muiden and owned by Benjamin Veitel Ephraim.

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A bound volume of Polarized Light's checks, all used. The checks are for salaries, supplies, and other miscellaneous expenses.

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A bound volume of Polarized Light's checks, all used. The checks are for salaries, supplies, and other miscellaneous expenses.

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Materials related to public articles and events by and for both Polarized Lights and Land-Wheelwright.

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A record of official meeting minutes for Polarized Lights, beginning with the incorporation of the company and ending with its sale to Polaroid.

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Internal and external correspondence pertaining to the business of Polarized Lights. Includes materials related to arrangements for meetings; company finances; experimentation; and patents and licensing.

Scope and Contents:

Internal and external correspondence pertaining to the business of Polarized Lights. Includes materials related to experimentation; company finances; patents and licensing; and arrangements for meetings.