This is one of those CRAZY Donruss sets. There are 250 Fractal Materials cards (for Helton). Of those 250, the first 50 were die-cut (causing that set to be "SN250, PR50") and the remainder are not die-cut ("SN250, PR200").
I have updated the listing for the card you have here:
https://www.tradingcarddb.com/ViewCard.cfm/sid/11128/cid/1912463
The entire set (actually, both sets) needs to be completely updated.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).