My wife's grandfather gave me 2 cameras to sell. The first is a Zeiss Ikon Super Ikonta that from what I can surmise is a Zeiss Ikon, Super Ikonta II 531/2, dating it to the mid '50s (which fits with the timeline given to me by the above mentioned grandfather.) From what I've seen this and similar cameras are selling for the mid $200 range (several are listed on Ebay higher, but I'm not sure if they are different models, or exactly how old camera pricing works). Second up is a newer camera, a Mamiya Sekor 1000 DTL. This appears to be something like an older SLR type camera, and I have a set of lenses to go with it. It looks more like it's a $50 set based upon what I've seen. I know nothing of selling older cameras and don't want to just wing it on ebay/craigslist. What would be the best method of ensuring I sell them quickly while also getting a reasonable return? Pictures are included: Any suggestions?