You guys have got to be gettin' tired of K-22 threads but I snagged one at a little show today. Here goes...
K 1745XX A nice old pre 18 with good grips (not numbered to the gun) with enough wear not to worry about it being a safe queen.
Funny thing is it's in an 18-3 box and it had some lookers, but I don't think anybody saw it was older than the box.