Assertion: pencil | /r/HasProperty | made before the civil war
Facets:
value: by the small boston area companies
type: OTHER
Source sentences:
text: In other respects as well, by the late 1870s the pencils made by the four large U.S. companies, which engaged in research and development to improve their pencils, were of substantially higher quality than the pencils made before the Civil War by the small Boston area companies.