Assertion: paperweight's design | /r/HasProperty | produced until 1970
Facets:
value: even then
type: TEMPORAL
Source sentences:
text: Even then relatively few designs were produced until the 1970s.
text: Even then relatively few designs were produced until the 1970s.
text: Even then relatively few designs were produced until the 1970s.
text: Even then relatively few designs were produced until the 1970s.