Need advice/ help with a few cards

[scottagibson]

Hello all, whereas this is my first post here, I have been around awhile on another forum (Blowout cards). I have heard there were very helpful folks here and I thought I'd see if I might could grab some knowledge!

So I need to give a bit of back story so you can understand where I'm going with this... About 2 years ago, a buddy and I were in the right place at the right time. A guy brought in an old collection of very random (atleast to me) vintage cards to my local card shop. These were not your typical cards to wonder into a store. Some were in decent shape while others (as seen below) not so much. We didn't have a clue of value on most because the stuff was just not readily available on-line. The guy gave out a price that the store owner was just not comfortable with. We asked if it would be ok if we negotiate. After the "go ahead" and a few google/ ebay searches we decided to take a chance on the number he was asking. He seemed very firm on his price and just needed some quick cash. Everything seemed legit and real... and thankfully PSA backed us up on all of it. I honestly don't remember the exact figure in the deal, but it turned out to be nice for my friend and I.

Fast forward 2 years and we are left with 6 cards. It has been a while since we have sold anything. Some of you may have seen these on ebay. (I actually just ended these just before posting as to not come across on my very first post as spamming my items). My intent is to see if anyone has a point of reference in value for any of these 6 cards. My question is, where can you go to get a realistic price for items like these? One in particular that I've had a really hard time finding ANYTHING on is the Beals Becker Piedmont Art Stamp.

Does anyone have an idea of value or what I should be asking on these last 6 cards? I need to move them soon but not sure I am comfortable just auctioning them away. ANY help, advice is so greatly appreciated.

Thank you,
Scott