Best Of

Try to keep this short.
Dr. Grabow Visconti with no stem. Decent shape but charring on the rim.
Decided to bring the rim down to bare briar, edge taped it and stain the rim black.

White diamond on the stem, waxed and buffed the stummel.  Here's the final:

Found a threaded stem close in size and shape. I step sanded it and got it to match the shank.

@KA9FFJ;
Damn you are good, Brother.

Next was prepping the stem to create a button. You must do this step if you want to insure permanent adhesion. 
I also used 220 grit to rough the new button area to create a rough surface...

Began using various files to start shaping and smoothing the button.
Note: there were 2 very small indentations ( 1st pic) that I couldn't get out without risking breaching the airhole, so I decided to minimize them as much as possible while being safe and cautious...

After being fairly satisfied, I started the sanding process on the stem, and stripped the stummel down to natural briar (excluding the deep grooves of course).