Need Help On Identifying Error Coins

Hi. Long time lurker, first time poster. I'm trying to raise some money quickly to get a plane ticket for a plane. So, I decided to sale some of my coins and I'm hoping the error coins will take a large chuck of the money I need to raise. I managed to pick up three different error coins while working register at my old job. Thanks to an older post here I was able to identify one as a brockage, and havent been able to quite figure these ones out. I havent cleaned these, didnt want to do any sort of damage to them. The first is a One Cent piece from 1997. Its slightly bowed which lead me to believe it might be a saddle error, but its not off struck. The sides are weird, not a flat surface as seen from the picture. It also seems to be missing the top coating and looks like an old steel penny. The next is a Washington quarter, I can make out both his head and the eagle on the back, but I'm not honestly sure if this an error or a coin that met with a strange fate. Its mostly smooth on the edges and I cant make out a date at all. Seems to be solid silver, so I almost threw it in my scrap silver, but then again, it could be the coating covering the sides completely and I cant make out the other metals normal visible. Any ideas on that one? And lastly is a 2002 Quarter. I believe is want a defect either in the die or the parchment. I really dont know much about error coins and have a learned a lot from your forums. Thanks for all your great work.