Doesnt matter what the yoke connector is and if its compatible
ALL The CRTs are interchangeable between ALL the B&W compact macs. Its just a matter of swapping the yoke between the tubes and retuning any geometry.
I'm not sure that it was. If it wassold as a retail package, it probably wouldn't have been packaged in it's own unique box, but rather as an upgrade disk included with 8.5.
I think it may also had been offered as a free downloadable update to 8.5,? Apple's FTP site was available on the Wayback Machine last I knew, so perhaps I can check....