1. Local deflections of the Zenith at some stations near Washington City : to illustrate Appendix No. 7, Coast Survey Report of 1869 Yale Public content 1869. 2013-09-11T20:54:43Z. 2013-09-19T18:39:49Z. United States Coast Survey, issuing body. U.S. Coast Survey. English. cartographic image. Public. Washington (D.C.), Maryland, and Virginia.