Chart of estimate #15 of work done by John Williams

Chart of estimate #15 of work done by John Williams, Mar. 1857.

Chart of estimate #16 of work done by John Williams

Chart of estimate #16 of work done by John Williams, April 1857.

Chart of unnumbered estimate of work done by John Williams

Chart of unnumbered estimate of work done by John Williams. This is signed by Fred Holmes, Apr. 1857.

Chart of estimate #17 of work done by John Williams

Chart of estimate #17 of work done by John Williams. This is signed by S.D. Woodruff, May 1857.

Chart of unnumbered estimate of work done by John Williams

Chart of unnumbered estimate of work done by John Williams. This is signed by Fred Holmes, May 1857.

Chart of estimate #18 of work done by John Williams

Chart of estimate #18 of work done by John Williams. This is signed by Fred Holmes, June 1857.

Chart of estimate #18c of work done by John Williams

Chart of estimate #18c of work done by John Williams, June, 1857.

Chart of estimate #19 of work done by John Williams

Chart of estimate #19 of work done by John Williams, July 1857.