$239 The Prismatic Compass is a large solid brass compass that allows you to view an object while at the same time read its magnetic heading.
(The Prismatic Compass; is; a large solid brass compass that allows you to view an object) (a large solid brass compass; allows; you to view an object while at the same time read its magnetic heading) Context(a large solid brass compass allows,List([30, 69))):(you; to view; an object)
a large solid brass compass allows,List([30, 69))
The Prismatic Compass a large solid brass compass you
is allows to view
a large solid brass compass that allows you to view an object
you to view an object while at the same time read its magnetic heading
an object