Dimple key identification

[Adrian]

I can't find this key anywhere, I thought it would be a bit easier with the side holes but nothing. She has come back with a different key that doesn't have those holes. Thank you

[grahamparker]

Wanjin Silca WJ1R that key with the cutouts is a control key the locks are supplied with 2 sets of keys and a control key pictured.

Once used it eliminates the first set of keys allowing the second set to work.

You can just duplicte the control key if it's been used without worrying about the cut outs.