4 blueprint pages (A-D); annotated; proposal for construction of Salmon River Pump House. A is labelled in the bottom right corner: "Alternative Scheme / using Vertical Motor - Pump House / Salmon River Dyking" and on the back side "Salmon River Dyking / Proposition / Revised Plan Showing Vertical / Motor Drive - Pump House" is handwritten in blue and underlined. B is labelled in the bottom right corner: "Preliminary Scheme / Salmon River Dyking Proposition", "Dwn by RH[?] / Date July 27/29 / Scale - 1" = 5ft." and "Q-45"; pencil note in top left corner reads: "motor should be above H.W. line". C is labelled in the bottom right corner: "Salmon River Dyking Proposition" and just above has three handwritten names: "H.L. Carter", "W.J. Riddick" and "J.J. Morrison"; handwritten note along the top edge reads: "6" concrete floor? / exposed to weather". D is labelled in the bottom right corner: "Salmon River Dyking Proposition" and on the back side, handwritten in blue and underlined: "Salmon River Dyking / Proposition / Revised Plan Showing Vertical / Motor Drive - General Plan" and the number "1", circled.