Keywords: Conococheague Aqueduct at Williamsport from LOC.tif en Conococheague Aqueduct at Williamsport Maryland during the Canal's operating days Note the aqueduct wall on the berm side self-destructed in 1920 LOC-image det 4a11000 Detroit Publishing Co 1903 1 negative glass 8 x 10 in accession number LC-D4-16566 b w glass neg LC-DIG-det-4a11000 digital file from original Call Number LC-D4-16566 <P P> P P Corresponding glass transparency with same series code available on videodisc frame 1A-29917 Mule-drawn canal boat in center 886-G on negative; 801-G on transparency Detroit Publishing Co no 016566 Gift; State Historical Society of Colorado; 1949 PD-Detroit Conococheague Aqueduct |