I found what I believe is a prototype for Alpha Mission for the NES. I thought it was an odd looking mystery cart and figured i would pick it up. I opened the cart to clean it and found there are EPROMS in the board. I was wondering if i was wanting to sell this how should I go about it. I looked on some sites that had found prototypes listed and I have not seen this one on them.
Here are some pics on my flickr.
http://www.flickr.com/photos/90268393@N03/
Thanks