Hi Byron, thanks for the info. I actually worked it out the other day and posted about it here.....
http://www.mysandman.com.au/forums/s...?t=1162&page=5

Standard black fascia type 5 in console shift came with RTS badge and without badge (just the bump) from what I can work out. They must have stopped making the black chrome ones and black with RTS badge as the part number changed to M38280 in 1980 for all of them ... which is the standard black painted fascia with just the RTS bump.

I did some testing and the black chrome finish is just the standard suede black painted dash with the paint polished on the flat sections.