Box 4

Scale: 1" = 20'

Drawing features an outline of the Chicago and North Western Railway Company's freight depot on Julius Street, North Mill Street, and Exchange Street in Lead, South Dakota. There is a set of dotted lines representing the pipe line from a stone wall, past the railroad tracks and east to North Mill Street.

Drawn by: H.J.S.

Scale: 1" = 20'

Drawing features a key with symbols for values, tees turned up, water mains, and drain pipes. The Drawing features the Chicago, Burlington and Quincy railroad, a Valve House, Whitetail Creek, and a Boiler room. Pipes are shown groing from the boiler room, across Whitetail Creek, to the value house, along side the railroad to the Old Abe Siphons.

Drawn by: HJS

Scale: 1" = 1'-0"

Drawing features five different drawings of detials of frogs and corssings for Narrow Guage at East end of Machine Shop.

Drawn by: RER

Scale: 3/8" = 1'-0"

Drawing features a roof plan, planshowing location of openings in wall, O.S. view of West Wall pipe openings, a floor plan, and a side view of Shops Booster Pump. Some features are drawn in pencil.

Blueprint shows a top and side view of an Idler Sheave for 1-1/2 rope at the Ellison Hoist No. 1.

Floor plan of a typical mine powder magazine. The drawing features an 18" Gauge Main line track heading to the Ross Shaft and the Ellison Shaft.

Blueprints of the Ayer Mine Shaft Ore Skip and Cage Changing Device, showing the top plan and side elevation.

General Floor Plan for the Drill Sharpening Shop. The floor plan includes drill racks, a track with a turntable, tempering tanks, furnaces, sharpeners, and a forge.

Blueprint for a safety screen for mine raises. The drawing also includes a table titled "Bill of Materials"

Drawn by: L.G.W.

Scale: None

Drawing features a plan view, plan view top angle with plate attached, section "A-", Section "B-B" and elevation "C-C". The drawing also notes "Copied from: Farmer's Bulletin No. 1683 // U.S. Department of Agriculture // See some for discharge tables and setting details."