There should be a better category to post this in but I guess this is as good as any. 

I've had an issue with these Ghostbusters Cryptozoic Dave Coulier auto cards from 2016 for a while. I have been on the lookout for any known signature of his that resemble these but have yet to find one. He's not considered a highly sought after celebrity thats hard to obtain. Maybe he was out of town when he was older contractual obligations and just had someone else sign? Hopefully someone at some point can verify these either way. 

Here is an example of the Cryptozoic card compared to his known regular signature