Cape Cod Canal under construction, before 1910; vessels visible include tugboat NEPONSET, & dredges GENERAL MACKENZIE and DREDGE NO. 9 real photo postcard, hand-colored, divided back circa 1909-1910 2014.49.9792 ViewCape Cod Canal under construction, before 1910; vessels visible include tugboat NEPONSET, & dredges GENERAL MACKENZIE and DREDGE NO. 9 real photo postcard, divided back circa 1909-1910 2014.49.9793 ViewCape Cod Canal under construction, before 1910; vessels visible include tugboat NEPONSET, & dredges GENERAL MACKENZIE and DREDGE NO. 9 real photo postcard, divided back circa 1909-1910 2014.49.9794 View
