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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 navigational chart entitled, "St. Clair River Including Foot of Lake Huron and St. Clair Flats Canal," that was compiled and published by the U. S. Lake Survey (War Department, Corps of Engineers). The chart is drawn at a scale of 1:40,000 and shows the St. Clair River from the lower end of Lake Huron to the St. Clair Flats. Land areas are shown in pale yellow. Lake areas are shown in white and light blue. Distances are given in statute miles. Soundings for lake depths are given in feet. Lines of latitude and longitude are shown in black. Lighthouses and buoys are also noted.
- Date Issued:
- 1914-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One drawing entitled "Design for 40 Ft. Motor Launch for U. S. Lake Survey." The plan is drawn in black ink on linen at a scale of 3/4" = 1 ft. and is dated October 3, 1925. The sheet, No. 2 of 2 sheets, shows profile and cross section views of the lines for a proposed 40 foot, wooden-hulled motor launch. A "Table of Offsets" is given in the upper right corner area of the sheet. The title block in the lower right corner shows the plan being "Submitted By: F. G. Ray, Associate Engineer" and "Approved [By]: G. B. Pillsbury, Lieut. Col., Corps of Engineers."
- Date Issued:
- 1925-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- One drawing entitled "Design for 40 Ft. Motor Launch for U. S. Lake Survey." The plan is drawn in black ink on linen at a scale of 3/4" = 1 ft. and is dated October 3, 1925. This sheet, No. 1 of 2 sheets, shows plan, profile, and cross section views with dimensions for the proposed 40 foot, wooden-hulled motor launch. The title block in the lower right corner shows the plan being "Submitted By: F. G. Ray, Associate Engineer" and "Approved [By]: G. B. Pillsbury, Lieut. Col., Corps of Engineers."
- 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 blueprint drawing of the "Steel Steam Yacht, Enquirer." The drawing shows a starboard side view of the two-masted, propeller-driven yacht at a scale of 1/4 inch = 1 foot. An information table at the top center indicates that the yacht was 143 feet 1 inch in length and was built by the Union Dry Dock Company in 1896.
- Date Issued:
- 1896-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
