It lies 250 kilometers southwest of Lanchow, and is presently included in southwestern Kansu (Gansu) Province of China, near the border of Chinghai (Qinghai) Province.    From Wordnik.com.  [A Brief History of Labrang Monastery] Reference

As their plane prepared to take off from Lanchow, May-ling and Donald talked Chiang into stopping in Ninghsia, a small province situated between the Gobi and Ordos deserts, populated by Muslims.    From Wordnik.com.  [The Last Empress] Reference

At Lanchow in Chihli on the Imperial Chinese Railway near Shanhai-kwan, 16 old cash count as 100 cash, yet 33 are required to make up 200; in Tientsin from which point the railway starts, 1000 cash are really 500 cash and 98 count there as 100.    From Wordnik.com.  [AN AUSTRALIAN IN CHINA]

At Lanchow in Chihli on the Imperial Chinese Railway near.    From Wordnik.com.  [An Australian in China Being the Narrative of a Quiet Journey Across China to Burma] Reference

Therefore to convert Lanchow cash into Tientsin cash you must divide the Lanchow cash by 3, count 975 as 1000, and consider this equal to a certain percentage of a theoretical amount of silver known as a tael, which is always varying of itself as well as by the fluctuations in the market value of silver, and which is not alike in any two places, and may widely vary in different portions of the same place.    From Wordnik.com.  [An Australian in China Being the Narrative of a Quiet Journey Across China to Burma] Reference