Insecure with this ones found ID

[gdlwyverex]

I found a page on the Internet that says that this is an Echeveria altamirae, however I can no corroborate that ID with KEWS, World of Plants or any other authority.

Any ideas as to it's ID?

EcheveriaAltamirae.jpg (81.02 KiB) Viewed 2433 times

Thanks

Richard