Another piece I cant find anything on. Please identify for me!! Thanks!! On the other side are letters P O.

Looks like a stove eye lifter.

Is it a little curved in a side view? ditto.. stove  lifter...

They are sometimesa a little bit collectable, as there are folks who restore antique stoves (only certain kinds tho, and it's not easy to figure out what went with which stove)

Yes indeed, for a stove, woodburning type, probably a kitchen range that had the smooth iron top with lift out plates. 

One of three important parts to a wood/coal burning stove, Lifter, Leg & Poker.