Surface Originality Concern - Ned Indie 1/2 Cent 1945 Copper

Thanks trout, I can't see the cleaning on a coin that's so close to mint state so that's too bad I'll have to change that 90 to 99% then, the rest I saw with this colour is also unworn and small. It's actually more yellowish in hand than a salmon colour.

He has most of his coins stored in a box with red fluff lining it, and I can imagine that toning the copper resulting in him cleaning them. There were also some vividly rainbow toned (judging from whatever colour was left) silver that was scrubbed or brushed.

Most of the wartime coins he has are about XF at the lowest, just enough so that I can detect the cleaning. This one is way too close to mint state for me to tell.

Is there another way to determine that a coin was cleaned aside from colour? This one looks like it has lustre too, but it may be a trick of the light from the fluorescent lamps.