I just bought this plane and I'm trying to clean it up, but I can't figure out how to disassemble it....IMG_0647#2.jpg where do I go from here? it looks like theres 2 screws in the center of the pic holding it together but there's no slot for a screw driver, so I'm lost right now... Oh and I'm pretty new to hand planes so any advice setting up would be appreciated. Oh and I paid a whopping 20$ for this ps its a corrugated sole if that make any difference. Thx in advance! Jess