Nice find ladysmith. I'm sure you will like the electric blower. I picked up an old Buffalo electric blower 20 years ago or so, and haven't missed my old hand crank blowers a bit :-) .
The stake is a very nice addition to any shop also.
The tongs - I think the first pair (needing adjustment) is for flat iron, like picking up a wagon tire for installation, etc. I have several similar pairs.
The second pair could be used to hold any piece with a head, like a bolt, or like Jr says a socket type tool, or as someone else said, like a railroad spike.
The third pair is probably like Jr said, brazing tongs.
The last pair, I have no clue. Probably not originally designed for blacksmith use, but you never know . . .
But all in all, a very nice find.
BT