LIdded Box, spalted maple

That's a great shape Ken but the quarter-turn lid has my attention. Could you explain or maybe a picture? Also what is the finish?

Bob, a short (2 mm) male dovetail is turned under the lid at the same angle as the inside of the rim, and carefully measured to end up as a close fit inside the rim after the following handwork is done:
Two opposing quarter-sections of the dovetail are flattened, then two opposing quarter-sections of the rim inside edge are flattened to allow the unflattened parts of the rim's dovetail to pass through 90 degrees from the position where the grain lines up.
I use an Xacto knife to do most of the flattening, finishing up with files.
There's barely a 64th inch to remove in each case, so it doesn't take much.
While the almost-finished lid is still in the chuck, I use a pyramid point tool to turn a fine groove in the end of the dovetail, as a guide for flattening the dovetail sections evenly--and the same is done with the body.
It takes careful measuring with a caliper--you can't fit the lid to the body until after the handwork is done.
I always turn the body first, then I can twiddle with the fit of the lid while it's still on the lathe--and hopefully not turn it too loose! Just the finest cut with a skew can make a big difference.
Hope this helps--BTW, the finish is General ArmR Seal wipe-on urethane, buffed. But it needs a couple more coats, I ran out of finish!