By way of inheritance, gift, and reckless spending, I discovered that I had 4 lifetimes worth of threading taps and dies.  Below is the stuff beyond my needs.  It is a mishmash of mismatched items. I think most are gunsmith worthy (depending on the gun size ) 
I think 95% are US made. There are some Japan made dies.  The brands are  Besly, Butterfield, Greenfield, Widdell, Craftsman, Kobalt, et.al.  Everything is packed for shipping, so the photos are what you see is what you get.   
First “ I’ll take it”  followed by PM wins 

Set #1  $70   shipping included