Original version of the DP-100 with DK-1000 plinth : the only way to see that the well-remembered DP-100M was targeted at the consumer market.
The DK-1000 is a wood + leather enclosure with a wood + glass dustcover, à la Pioneer Exclusive P3. It is the only thing that turns a DP-100 into a DP-100M, adding 15kg along the way for a grand total of 63kg and 900,000¥.
That's 14,285¥ per kilo :)
Only about one on ten DP-100M was fitted in a DK-1000 but for something made for the consumer home... strange move. The Servo Tracer tonearm was fitted on each DP-100M made but was originally planned to remain optional on the DP-100 - another strange move.
However, at 200,000¥, it was previsible the few buyers did decide to keep it simple and went for the barenaked DP-100...
For the technical description see the DP-100 page ; a real DP-100M here.