1969 S Lincoln With Proof Edge

Looks like a regular Business Strike to me. What do the others think?

I've seen business strikes with the same edge thickness. All that means if that the setup was stronger on the blank turning it into a planchet. That year also struck normal business strike cents from San Francisco. But what is missing is the strike. The proof coins are struck twice. Making the design a lot stronger.

So your coins are a normal business strike coins. (The struck business strike cents with a 'S' mint mark from 1968-1974.

The sharper edge is on the inside of the rim. On the BS and matte proofs the rims are more squared and the rims on the BS are more rounded:

The rim are thicker and the edge is sharp on the inside edge of the rim.
But note on the image I posted earlier. Note the rims are more squared on the Proof coins and they are thicker. When you put them into a clear tube, you can get about 48 coins per tube where the BS coins you can get 51. So the edges are thicker. But as I mentioned earlier, I've seen these on cents in the 1996-99 era. When you fold them in your hand you can feel the difference even in a 2X2. But the biggest difference is the strike. Note how much stronger strike the proof coin has compared with the business strike above? That is what is different. Also the polished dies that is only used for 3,000 coins, 6,000 strike total and they are retired. That is what makes them a proof coin. That plus the polished dies. The strike on your coins are not a proof strike. A proof coin is from a separate way of making a coin. A business strike coin can never be a proof. If a proof coin is put into circulation and had wear/damage on the coin, it is still a proof coin, just impaired. So it not the rim that makes a proof, it the strike itself. Sure we use the rims for that matte proof coins. But on the business strike coins it is obvious that they are proof coins, even when they are found in circulation.

Hmmm....
Wonder if this coin could be an example of a proof pair striking a "business strike" planchet.

As far as the clash goes, I can't really see the details in your images but does this link help for the 1969s counter clash [CCL(2)-1c-1969s-01] http://www.maddieclashes.com/cclt2-1c-1969s-01/ .

Certainly possible but yours doesn't appear to have the high reflective finish of a proof.

I can't help you on whether the upset mill has a different setting for proof vs. business strikes. I wouldn't think so, but maybe.

I think the different sharpness on the rims would be a slight difference in the rim gutter since that forms the inside and face of rims. Not sure what causes the difference between proof and business strikes where the rim meets the outside edge, unless it has to do with the different striking pressures between the two types or slightly different heights of the collars.

Coop will probably know whether the mint ever repurposed proof dies to strike regular business planchets.

Coop, how about the Edge( Not the Rim for Now)? When is the added?. If the Edge is added at this time( on Blank Planchet), is it made to look PR or BU? Is this Process similar to the reeding machine? Is the Edge (PR or BU), produced as a result of the Striking. Now the Rim. When the Proto Rim is added,is this Proto Rim added with a BU(Rounded) or PR(Square) 3rd Side(edge)? Will the Double Strike of PR cause a BU( Edge an RIM) rounded edge? Will the Single Strike of BU cause a PR( Edge and Rim) square edge? Thank you for the help,
Edward M.

In the case of cent production, I'm thinking the upset mill process is basically the same, be it used for proofs or business strikes. End result creates a planchet with a proto rim. The crisp raised edge and design rim or lack of has more to do with the applied pressure during the strike(s).

Applied pressure is adjustable in either case.

More food for thought in link below. Thanks, Doug.
https://www.coinworld.com/news/prec...om-norm.html