I have filled in the page for this coins as I did not find it in the catalogue, I have submitted the data and I am not sure if I should have mentioned this in here or not.
Hello and thank you for your contribution, a couple of observations for you: there were no 2 Crown pieces issued for the UK, your coin may be for the Isle of Man or Gibraltar, for example; I can't see any new page request for a 2 Crown piece awaiting approval under the UK catalogue.
Just because you can't see it ... doesn't mean it isn't there - Anon.
No problem at all, happy to help. The catalogue referee is @Oklahoman but the important thing is to select the correct ‘Issuer’ on your modification request to ensure it goes through to the correct section of the catalogue. If you click on ‘FAQ’ at the top right of any page you will find several links and tips for contributing to the catalogue and if you go to the bottom of the Gibraltar catalogue you can click the link ‘A coin is missing in the catalogue? Add it yourself!’.
Just because you can't see it ... doesn't mean it isn't there - Anon.