William Westlake 1864, 65 patents made under the partnership of Cross, Dane, and Westlake 

William Westlake, native of Cornwall, England, Westlake (b. 1831) had come to America with his family as a kid in the 1840s, first settling in Chicago, then Milwaukee. It was in Wisconsin that William found his niche as a metalworker and engineer, supporting his family as a teenager after his father’s death, and eventually becoming a foreman in the tinsmith department of the Milwaukee and LaCrosse Railroad by the age of 26. During the Civil War, he returned to Chicago and co-founded the firm of Cross, Dane & Westlake, which focused on the manufacture of a revolutionary new “removable globe lantern” and other railroad supplies of Westlake’s own invention.
Westlake lost his original firm’s Chicago plant in the Great Fire—although, critically, he managed to salvage the design specs and patterns for the vast majority of his inventions, and continued his business under the new banner of Dane, Westlake & Covert in 1871.

Lantern production is somewhere between  1865-1871 ( most likely only a year or two made)
This innovative design made way for all future railroad and dead flame lanterns, leaving fixed globes as a thing of the past.

Two spring buttons release the guard body  to remove the globe.
Lower body features a sliding access door to light and extinguish the flame.
Burner extends out to operate with door closed.
Fount is also removable by sangster clips .

No.1 brass burner is marked E. MILLER on the thumbwheel.

Globe is very crude , hand blown with lots of straw marks in the glass.

Condition - excellent for its age , no cracks to the globe , no heavy rusting or pitting .
Skirt has been resoldered ( was loose )
No working condition issues .

** has not been oil tested **

Cross , Dane, & Westlake 1864,65 removable globe patent