Assertion: sextant's scale | /r/HasProperty | read with screw
Facets:
value: to 10 arc seconds
type: TEMPORAL
Source sentences:
text: The scale may be read to 10 arc seconds with the vernier scale, clamp & screw fine movement, and swing out magnifier.
text: The scale may be read to 10 arc seconds with the vernier scale, clamp & screw fine movement, and swing out magnifier.