They were early '90s I think, made in Korea.
I can't remember much about them, but they were budget models, no more than £200 new (possibly even a lot less than that). Pretty sure the bodies are plywood, and the Explorer-style headstock isn't ideal for use with a trem.
I have a mental image of Rockers in Denmark St displaying them in their window - I think they came in black, red or white.