Hi, I'm new to this site and I'm really not sure if I'm posting this at the right place but I'm sure it will get moved if not and I'm sorry ahead of time if this is in the wrong section. But recently I have been offered a 1969 Manchester Arms Mini 9 for trade for a kayak I have. The owner has all papers and it is registered. I tried doing research on this gun but I have found nothing. Can someone point me in the right direction? More info about this firearm and possibly what something like this typically sells for? thanks in advance.