Yeah, the silver faced one had its lacquer paint cleaned off an the raw Aluminum color is showing. No, seriously, i don't think that there was 2 different styles of faceplates for that model. I maybe wrong but check to see if all the letters for the knobs are intact and maybe loosen a knob and check underneath it to see if there is a difference in color. I know i tried to "clean up" a discolored gold tone face plate with Brasso and ended up removing some paint from the fascia which revealed the raw aluminum color.