We are offering a COLOR COPY of a Surveyor's Plat map of the foundation plan of a new building of Municipal Contagious Disease Hospital of Chicago, that was located at the corner of 26th Street & California Avenue, where now is the Cook County's Sheriff's Office, Courthouse & Jail. 
SUCH AN IMPORTANT HISTORICAL PLAT MAP! This plat was drafted using an architectural plan to show staking for construction of a building for Warner Construction Company. It has lots of surveying notes. History of Chicago at your fingertips! 
The size is appr. 17" x 27". Clearly dated 1916.  
 
 
 
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