Hi I'm new here. I actually used to hang here back in the day, but I can't remember my old username and it was registered with an email I no longer have. Anyway, my father-in-law passed away and left everything to my wife, his only child. We have a basement full of gear. The first thing that caught my eye was what appears to be a 50 watt Silver Jubilee and matching 4x12. I'm trying to figure out if it is an original or a reissue. The serial number, S/A AS00284 doesn't seem to match anything on any sites I've found that discusses Marshall serial numbers. Anyone have any ideas?