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Spokane, Portland and Seattle Railway Engineering Drawing: Rail Lock Bed Plate, Bridge A94.9 - John Day River, Oregon, Line Segment 440, Milepost 84.71. Sheet WW386, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Lock Bed Plate, Bridge A84.8 - Blind Slough, west of Clifton, Oregon, Line Segment 440, Milepost 84.71. Sheet WW386, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Lock Bed Plate, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet SS514, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Lock Bed Plate, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet SS514, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Lock Assembly and Bill of Material, Bridge A62.7 - Clatskanie River, west of Clatskanie, Oregon, Line Segment 440, Milepost 62.67. Sheet NO - 263, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Latch, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet Z - 5 - 3, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Joint Casting, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 208, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Joint Casting, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 208, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Rail Expansion Clamp, Bridge 9.6 - Columbia River, Vancouver, Washington, Line Segment 047, Milepost 9.31. Sheet TV - 282, undated.