This looks very much like one of my Burny's. The "model" in the script's location would make me think later than early eighties. The earlier ones have the "model" part of the script quite a bit higher, at two different locations, one referred to as a medium script, and one a high script. Yours would be considered a low script. Also has the grey wire, which usually means post 85-6 or so. What color are the caps in the control panel? Green would probably make it tail end of 87ish, while the yellow ones probably late eighties or early nighties.
Mine has the grey wire, low script, and green caps....also the bell truss rod cover. However it does not have a serial number. Anyway, from the knowledge I have gathered, I think mine is around an 87 RLG 60 probably. It's a fine guitar, and I bet that one of yours is too.