In article ,
"R.H." wrote:

This week's set has been posted:

http://puzzlephotos.blogspot.com/


Rob

660: Electric Eraser

661: Optical illusion in 3-D. Look at it from different angles and the
blocks seem to change arrangement.

662: Ya got me!

663: Wire fencing stretcher

664: Employee number tag, placed on a pin board to show if employee is
onsite or not. (often used to show which miners are in a mine)

665: no idea

--
Bring back, Oh bring back
Oh, bring back that old continuity.
Bring back, oh, bring back
Oh, bring back Clerk Maxwell to me.