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- Description:
- One drawing entitled "Design of Motor Launch No. 8 for the U. S. Lake Survey." The plan is drawn in black ink on linen at a scale of 1 inch = 1 foot and is dated December, 1912. This sheet shows the hull lines for a proposed 21.5 foot long, wooden-hulled motor launch. The title block in the lower right corner shows the plan was "Prepared under the direction of Lieut. Col. J. C. Sanford, Corps of Engineers, U.S.A."
- Date Issued:
- 1912-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One drawing entitled "Plan and Sections Showing Modifications of Demilune at Fort Wayne." The drawing consists of black and red ink on linen and shows plan and cross-section views of one of the demi-lune gun batteries at the fort. The configuration of the gun platform area is shown as well as contour lines which indicate the elevation and grading for the ground slopes in the vicinity of the gun platforms. Handwritten text beneath the title shows "Engineer Department, Washington, July 21, 1866, Sent to Col. Cram at Detroit with letter of this date. Rich'd Delafield, Bvt. Maj. General, Chief Engineer, U. S. Army."
- Date Issued:
- 1866-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One plan sheet entitled, "Framing Plan." The drawing consists of black ink on linen and shows a starboard side interior profile view of the hull framing arrangement of the Army Corps of Engineers tugboat, Manitowoc. The title block in the lower right corner shows that the drawing (Hull No. 30) was prepared by the "Manitowoc Dry Dock Company" at a scale of 3/8 inch = 1 foot and is dated December 7, 1909. The plan number is shown as "5006."
- Date Issued:
- 1909-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One navigational chart entitled "St. Lawrence River, Detail Sheet No. 6, From Galop Rapids to Point Iroquois." The title block near the top of the sheet indicates "Major C. B. Comstock, Corps of Engineers, U.S.A., in charge" and that the chart area was "Surveyed under the direction of Lieut. W. R. Livermore, Corps of Engineers, U.S.A." The chart was drawn at a scale of 1:10,000 and is printed in black ink on white paper. Survey information includes water depths in feet, depth contour lines, shoal and current notes, river bottom characteristics, shoreline details, towns, roads, property lines, north arrow, and survey triangulation points. The chart is dated 1871.
- Date Issued:
- 1901-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One blueprint drawing entitled "Steam Survey Boat, Gen. C. B. Sears." The drawing shows a starboard side exterior profile view of the proposed boat as well as three plan views of the decks and one cross-section view of the hull and decks. Design notes and specifications are shown along the right side of the drawing. The title block in the lower right corner shows that the drawing was "Prepared in the Office of the Chief of Engineers, U. S. Army, Washington, D.C." The drawing was done at scales 1/8 inch and 1/2 inch = 1 foot and is dated 1914.
- Date Issued:
- 1914-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One carbon copy letter, dated May 22nd, 1925, from Dunbar & Sullivan Dredging Co. to the Corps of Engineers. The typewritten letter acknowledges receipt of a permit from the War Department for fill and riprap placement around Stony Island.
- Date Issued:
- 1925-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One drawing entitled "Survey of Northern and Northwestern Lakes, Design of Intersection Protractor." Notes beneath the title indicate that the protractor was "Made under the direction of Major W. L. Fisk, Corps of Engineers, U.S.A., and E. E. Haskell, Prin. Asst. Engineer, by Murray Blanchard, Junior Engineer." The plan is drawn in black ink on linen and is dated April, 1904. The drawing was prepared at full scale and shows plan, profile, and cross-section views for the design of a protractor which was used for drawing lake survey charts. Additional notes at the bottom of the title block give the following specifications: "Make bar of steel, graduated arcs of German silver, and other parts of brass. Protractor arms to be nickel plated. Graduate protractors to 1/2 degree and verniers to 1 minute."
- Date Issued:
- 1904-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One plan sheet entitled, "Outboard Profile." The drawing consists of black ink on linen and shows a starboard side exterior profile view of the hull and superstructure of the Army Corps of Engineers tugboat, Manitowoc. The title block in the lower right corner shows that the drawing (Hull No. 30) was prepared by the "Manitowoc Dry Dock Company" at a scale of 3/8 inch = 1 foot and is dated April 22, 1909. The plan number is shown as "5030."
- Date Issued:
- 1909-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
