Drawing of a 3 Ply Frost Casing from Chicago Bridge & Iron Works, undated

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Summary: 
This drawing illustrates how frost casing bolted to a tank for a water tower riser pipe.
Identifier: 
gdp-dc0017-0320
Citation: 
Drawing of a 3 Ply Frost Casing from Chicago Bridge & Iron Works, undated; Folder: 83054-1917-424, Box 17; Central Classified Files, 1907–1939 (NAID 300324); Office of Indian Affairs; Record Group 75; National Archives and Records Administration-Washington, DC.
Topic: 
School Operations
Original Date Description: 
undated