Re: ? don't know what i got here ?
I think the first one could well be the thumb piece from an old door latch or something similar. The last isn't a spur. If the holes are different sizes as it appears in the photo, I would think it operated vertically (holes up and down) with a rod going through the larger hole and a smaller top pin through the top hole, allowing it to rotate without falling down the rod. Maybe all three are part of a gate. The piece with the holes might be one part of one hinge of an ornamental gate. They are often designed so that the gate half of the hinge drops over a vertical post.