318 Piston ID?

[Joey N]

Hey there recently cracked open a 318 I got for a hundred bucks and Ill attach a photo its bored .30 over judging but the poston but I want to knwo what brand it is becuase what im doing with the engine rides on that question based on the research I have done Im guessing either...

Sealed Power Cast Pistons 285AP30​

Clevite MAHLE Piston Set 318ci with 3.94" Bore (+.030")​

or

Silv-O-Lite Cast Pistons 1266C.030​

I cant tell since the stamp on the pistons I have are off center and not very precisely placed
Thank you all in advance,
Joey N.