Carl G. wrote:
"R.H." wrote in message
.. .
This week's set has just been posted:

http://puzzlephotos.blogspot.com/


Rob

My guesses:

750. Diving screwdriver

Would a wood handle be good for a tool repeatedly exposed to water under
pressure? Bronze will corrode in salt water.

I think was designed long ago for working around magnets, and the pivot
is to use it in tight places. I wonder if it was for working on
generators with permanent magnets.