Many thanks to Steve (W1SFR) who writes:

Hi Tom,

Here’s a pic of the new “Station Base” for the portable torsion bar key. The rubber feet unscrew and can then be attached to the key base. It’s really solid on the desk but the whole thing only weighs about 12oz.

http://kx3helper.com/single-lever-portable-tb-key/#jp-carousel-596

72/73,
Steve—W1SFR

That’s one handsome little key there, Steve. I like the base addition. Thanks for sharing!