An elderly neighbor wants me to sell some of her late husband's camera equpment. I know nothing about cameras, but of course would like to get her the best price. I know that her husband was an active photographer and used and cared for his equipment. These cameras have probably been sitting in their cases for the last 15-20 years or so however. This is what she has: Leica DRP Nr. 691975 Nikkormat FT 4204902 Nikon F2 7277691 A case with assorted lenses and stuff. Are they even worth selling? What is a range of possible prices I should expect? Should I be trying to sell these individually, or as a lot, or ? Any advice or web sites that you could point me toward would be appreciated. Thanks in advance.