An Au has loss of luster from circulating. And your shows it pretty well. The luster that is present kinda make all the lettering glow, while the high points and fields have a flat gray look to them. That flat grey look is because the luster has been worn away.
Coinflation is incorrect. The copper in pennies is not Grade A copper which is what the copper quote of around $3 per pound (NOT TROY) is for. The copper in Lincoln cents brings 25% of the spot price, with 146 copper cents per pound, copper would have to get to $6 to break even. Anyone who is saving copper cents on the intention of future melting is wasting their time and money. Copper is not getting to $6, (and it would have to get to $8 to make any kind of profit with storage, transportation, etc.) they are just going to sit around with 55 gallon drums of cents and end up getting rid of them at a loss.