Spectropolarimetry of the unusual high-polarization quasar OI 287

New spectropolarimetry observations of the quasar OI 287, which appears to be the only high-polarization quasar which does not fall into either the category of broad-absorption line QSO or the category of blazars, is presented. The spectropolarimetry, which has a resolution of about 6-8 A, demonstrates that the broad permitted lines are polarized at about the same level as the continuum and that the narrow forbidden lines are essentially unpolarized. The polarigenic mechanism and the relationship of OI 187 to other broad-line objects is discussed. 15 references.