Overtons, Brownings, JR's and LM's. Who are the actual serious dealers in this type of material? I just want to be sure I haven't missed anyone.
Sheridan Downey is the go to guy for Overton dms (bust halves) https://www.sheridanscoins.com/ Overall, try Bryan Greer http://www.briangreerrarecoins.com/ and David Kahn https://www.davidkahnrarecoins.com/