RETAYLOR

Hello all! First post here....My wife and I bought a Bel Air 414 sewing machine (folding desk type, not sure what that is called), we want to get some info on it, but most importantly we want to use it! I plugged it in and everything seems to move and work correctly (this coming from someone who has never sewn). Anyway, there is a part missing that I would love to know where to get. right in front of the needle on the base of the board there is a small cover that the bottom thread sits in, well the cover is missing...