Post over at rugerfourm.com and you'll be amazed at the information you will get. Since you mention that one is a Flat Top, you have at least one Old Model. Flat Top frame SN's end at @42689 (1962). Your SBH will have a SN in the 1 to 80-64750 range if it is and Old Model. You don't mention if you have the boxes, papers, etc. If present and correct, they can bring a substantial amount. Prices vary, but you'll see them range from 350-700.