[TR] Dash covering on later TR3s

[Randall]

> Good question, Ed. I always kinda thought that the later dashes had
> vinyl covering, but the vinyl was just that: only vinyl with no cloth
> backing as is usually found in upholstery vinyl.

The late 3A I parted out once certainly seemed to have the dash covering
molded to the dash.  Absolutely no wrinkles, or flaps where it had been cut
and pulled around the edge.  And it was stuck to the metal MUCH more firmly
than the earlier coverings were.  Even a razor blade would not peel it off
evenly.

No clips on the edges either (or need for them), which is a marked contrast
to all my earlier dashes.

Randall