drawing

Spectacle Reef - Coffer Dam

Spectacle Reef - Cross Section

Spectacle Reef - Engine & Crane

Spectacle Reef - Engine & Crane

Spectacle Reef - Foundation

Spectacle Reef - Foundation

Spectacle Reef - Fresnel Lens

Spectacle Reef - Harpers Magazine

Spectacle Reef - In Ice Floe

Spectacle Reef - Perspective Drawing

Spectacle Reef - Pier & South Elevation

Spectacle Reef - Plan Of 14th Course

Spectacle Reef - Present Crib Structure

Spectacle Reef - Proposed Protection

Spectacle Reef - Steam Engines

Spectacle Reef - Various Courses

Spectacle Reef - Various Courses

Split Rock - Sheet 3, Lighthouse Elevation

Spring Point Ledge - Cracks In Foundation Pier 1929

Spring Point Ledge - Cracks In Plates 1912

Spring Point Ledge - Paul Bradley Drawing

Spring Point Ledge - Rip Rap

Squaw Island - General Plan

Squaw Point - Plan Showing Lantern & Illumination Angle

Squirrel Point - Paul Bradley Drawing

St. Augustine - Lighthouse & Possible Keeper Drawing

St. Augustine - 1st Order Lighthouse

St. Augustine - Upper Lighthouse & Lantern

St. Croix River - HABS drawing of lighthouse, east elevation

St. Croix River - HABS drawing of lighthouse, north elevation

St. Croix River - HABS drawing of lighthouse, south elevation

St. Croix River - HABS drawing of lighthouse, west elevation

St. Croix River - HABS drawing, attic plan

St. Croix River - HABS drawing, first floor plan

St. Croix River - HABS drawing, lantern and roof plan

St. Croix River - HABS drawing, second floor plan

St. Croix River - HABS drawing. basement plan

St. George Reef - 1957 Cross Section

St. George Reef - Construction

St. George Reef - Design Proposal, 1