URL in admin of thumbnails

I am creating various image sizes and I’d need the website admin person to be able to grab the url of the thumbnail.

In the media uploader you can grab the url of the full size image but is it possible to also show the other image urls too, such as medium and small sizes? Here’s the part I am referring to in the admin

http://s7.postimage.org/k8pwwko63/Capture.png

You can see that the full image url is ..wine.jpg but the medium image size url will be wine-250×186.jpg. I know that the image name will be this but for ease of use for a website admin they would need that link pointing out to them.

Thanks