#1: Looks like it could be some kind of antique guide for a saw or knife, to create a notch in something.
#2: Looks like something you'd nail into something else and run a line through it. (It's hard to pinpoint this one because there's no sense of scale...)
#2: Looks like something you'd nail into something else and run a line through it. (It's hard to pinpoint this one because there's no sense of scale...)