While explaining the contents of a socket set to my little grand daughter, after she'd tipped them all over the floor, I remembered I still have some tools that I haven't identified yet. Can anyone help me out?
My first one is obviously a hammer but I don't know what job it was intended for. I discovered it 30-odd years ago when I was replacing my lead pipes with copper. Two of them refused to come out so I wrapped one around each arm, put a foot against the wall and pulled hard. Part of the ceiling came down (I intended to dry-line it anyway) and this hammer bounced off my head. I reckon it had been there since about 1935 but what was it for?

My second one is, I'm told, often seen at car boot sales but I still don't know what it is. One slot is worn and the tip is shaped like a screwdriver bit.

My third one is a 1/8" drill that was in the remains of a jobber's set. The flutes all appear quite coarsley ground and this one the flutes even reverse direction. On one of the others the flutes go straight before continuing in the usual way. But why?

Finally, another drill. This is a short #15 with a flat on the shank and tapered flutes. What sort of material would require this one?

As usual, thanks in advance