Assertion: spear | /r/CapableOf | introduce skew-back design
Facets:
value: in the late 19th century
type: TEMPORAL
value: with being their 1887 jubilee saw
type: OTHER
Source sentences:
text: The Disston "skew-back" saw was introduced in 1874 and Spear and Jackson also introduced a skew-back design in the late 19th century, with one example being their 1887 Jubilee Saw.