Unknown 8 Inch 4 Ohm Champ Speaker

Got this speaker from a SFVC I worked on. it isn't the stock one as I have a record of the stock speaker being replaced in '95 from an old work order, but II don't know much about it. It sounded nice, tightened up the low end a  bit and worked well in the champ, I just love alnico speakers and how they respond. ask any questions

Note: I'm out of town until Labor Day, I will ship ASAP when I return