Uncirculated Bullion vs Uncirculated mint marked

I have several bullion coins that are uncirculated proofs, some NGC rated 67 or better, and some bullion coins that are mint stamped "U" (Uncirculated). When classifying "My Coins" for this website, how would you classify the mint nonstamped bullion proofs and those with exceptional NGC ratings? I'm new to this website and want to classify my collection correctly to these standards.

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