Mappin Webb 7Day Nulli set.

Hi everyone, i own this set and am hoping that someone out there knows something about it. Estimated year, or any anecdotes etc. Even feedback on it's looks or quality are appreciated. It looks like it's been kept very well aside from the forced opening. The key was missing and when i bought it it was already forced open damaging the case slightly. Oh well. The blades are great though minor discoloration and scratches.

The images are located here:

http://www.flickr.com/photos/99287145@N00/

Thanks so much!!

Russ