Portsmouth Harbor and Piscataqua River1961-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_038_14_0000_4_162The document outlines a river chart and area plan of Portsmouth Harbor and the Piscataqua River, which lies between Maine and New Hampshire. It appears to have originally been connected to Item 161. The river chart and area plan are presented as orthographic projections and are available as a xerographic copy, measuring 8 1/2 by 14 inches.