Other papers: employment records [1 item] Other papers: Work by Edward Pearce Casey (1864-1940) [4 items] Other papers: Memorandum on Bill 5087; typescript, "Law Relating to the Building of the Library of Congress;" Letter of receipt [3 items] Photographic material: cyanotype album [approx. 50 items] Photographic material: mounted photographs [10 items] Progress reports: August and September, 1889 Progress reports: August and September, 1890 Progress reports: August, 1891 Progress reports: August-September, 1892 Progress reports: August-September, 1893 (2 folders) Progress reports: August and September, 1894 Site plans: Specifications for brick; Location of the Library of Congress [2 items] Photographic material Other: sketch of plaque re: Harry Weir Casey [1 item] Other: Count Richard Ezdorf re: State, War and Navy Building (translation; text; printed photographs and sketches) Other: sketches of Casey's tomb, undated [2 items] Other: Congressional proceedings re: Washington Monument (45th Congress, 2nd Session); includes clipping Other: Proposed extension of foundation severson Other: Drawing of movement of plummet month by month (several months from each year missing) Other: Top of Washington Monument Other: Unidentified line drawing Photographs (19.5" x 23.5"): various views of the Washington Monument half completed [7 items] Photographs (20" x 16"): buttresses of foundation, stone setting machine, elevator engine, strengthening foundation [6 items] Photographs (14" x 16"): workers on foundation [4 items] Photographs (20" x 16"): top of Washington Monument Photographs (4" x 6.5"): capstone [2 items] Photographs (matted, 22" x 26"): Thomas Lincoln Casey (1831-1896) Photographs (11" x 25.5"): upper half of Washington Monument [2 items] Sketches and prints (26.5" x 21"): print of proposed Washington Monument Sketches and prints (33" x 27"): details of Washington Monument, sketch for Dougherty from (? Mills), October 24 Sketches and prints (16" x 12.25"): foundation, side and top view for Dougherty from Mills (notes added by ? Casey), July Sketches and prints (7.5" x 11"): print of proposed Washington Monument (printed signature of Casey) Sketches and prints (24" x 18.5"): proposed completion of Washington Monument, print with other structures for comparison Sketches and prints (16" x 24.5"): boundary of plummet, graph notes by Casey, February Sketches and prints (35.5" x 23.5"): elastic deflection of Washington Monument, printed graph (signed by Casey and Green), June 1 Sketches and prints (36.5" x 23.5"): pyramidion, printed graph/ sketch by Green (signed by Casey), January 19 Sketches and prints (35.5" x 23.5"): pyramidion, printed graph/ sketch by Green (signed by Casey), February 1 Sketches and prints (36.5" x 23.5"): pyramidion, printed graph/ sketch by Green (signed by Casey), July 21 Sketches and prints (print, 24" x 18"): setting of capstone Sketches and prints (23" x 18"): oscillation graph; includes 1889 notes in pencil from unknown source Sketches and prints (23" x 18"): extreme oscillation graph Sketches and prints (16" x 16"): foundation, plan of extension (signed by Casey) Sketches and prints (22" x 28"): foundation, plan of thickness of sandy stratum (signed by Casey) Sketches and prints (38.5" x 26.5"): foundation and shaft, print of design for strengthening (prepared by Davis with printed signature of Casey) Sketches and prints (17.5" x 44"): foundation, soffit graph, notes in pencil, July Sketches and prints (29" x 28"): buttresses, printed plan (signed by Casey) Sketches and prints (17" x 17"): plummet, graph, February 12 Sketches and prints (20" x 16"): plummet, graph, February 15 Sketches and prints (25" x 23"): plummet graph, August 27 Publication: [Devotional Book of Days]