550 I'm surprised nobody got this yet.
It is an Ice Crusher / Ice-Pick. You put a few ice cubes in a 1-pint pyrex
measuring cup and smash them into crushed ice. The impact when the handle
slams down to its limit breaks the ice.
It works, but has a flaw... Tends to chip off ground glass from the bottom
of the cup.
"R.H." wrote in message
.. .
This week's photos have just been posted:
http://puzzlephotos.blogspot.com/
Rob