Looks like older SP4's, circa about 1990. As I recall, Peavey did away with the rounded style horns (we used to call them "booger lips) in about 1992. Good speakers.......for 215/horn designs.
FULL DISCLOSURE: I hate 215/horn designed cabinets. If you use subs, the bottom 15" just as well not be there. If you don't use subs, they're nearly impossible to get to the right height unless you can set them up on a stage. They look cool and sound good when properly deployed. It's the deployment that's the issue.