I'm able to confirm that this is a copy of a DS 20th Century, not a TM recast.
And just to show I've done my homework...
Just posted this on RPF so will post it here too:
Just an example of a few of the details I mentioned.
Boxed is the triangle inside the tooth gap. One can also see the same grill, and it is actually the identical grill to the DS 20th. For example the TD ANH and DS 20th have slight differences in the filler material condition in the grill area. So it is the DS 20th C grill. And there was no grill on the TM ESB because the tooth gaps had to be filled in. There is also the flat portion on the U-shaped part of the nose that is more pronounced on a DS 20th C than on the TM (indicated by the angled bar above that flattened portion).
The C-scar is not accurate. It is finely made, however with attention to detail in the curvature but he messed up in two places. He reworked the tabs as well that's why the screws look new. The DS 20th screws are in poor shape so that would have been necessary.