How do I remove this:

http://www.espares.co.uk/part/cookers-and-hobs/lamps/baumatic/p/1600/1533/0/0/1251961/oven-complete-lamp-assemb.html

Is it screw off?
The manual says screw off anti-clockwise, but then shows a picture of a different lamp cover.

mike004, January 2012