Hi Andrew,
Dont know much about the blower unfortunately. I got it at a swap meet a while ago now, its in quite good working order and blows well. Its made out of cast alloy material - standard hand cranked blower - the only marking on it is 60A on the other side. You can also run it off a V belt on the small pulley.
I like the hand blowers as they basically slow down and stop blowing when you let go, so it saves a bit of fuel as the fire is not burning away when you are at the anvil, then it starts the fire up quickly when you come back.
Cheers
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