Derek Jeter proof card help

[MGHPro]

Hi
I was told this is a one of a kind piece , is that true ? I was also told it could be very valuable . I tried to find comps but didn't have much luck . Any help would be appreciated
Thanks
Matt

[MGHPro]

Sorry for sideways pictures

[MGHPro]

Final pic

[swarmee]

Small Traditions auction house has been selling a lot of Jeter stuff and might be able to help you with value.

[MGHPro]

Thanks for the info. I took a flyer and bought it from the guy. Not sure how I did but its cool IMO
Thanks
matt