US Mint Video On Proof Coin Production

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Author	Replies: 7 / Views: 1,239
Bump111 Pillar of the Community United States 3331 Posts	Posted 09/14/2021 09:01 am Apologies if this has been posted before. A quick overview on proof coin production. LZMAY-53a-A "Nummi rari mira sunt, si sumptus ferre potes." - Christophorus filius Scotiae Report this Post to the Staff

sel_69l Bedrock of the Community Australia 21788 Posts	Posted 09/14/2021 09:34 am There ya go! They are using good old soap 'n water before burnishing the blanks. Another downer for proof cameo, is that some of the very sharp design detail is lost in order to produce the cameo effect. That is why I prefer a perfectly struck business strike in MS-70. Amongst other things, they are much rarer than PF-70 coins. Interesting to see how the rimming is achieved. Thomas Simon, with his Petition Crowns, in a similar process, used parallel lettered bars to roll his petition statement onto the edge of the coin. Edited by sel_69l 09/14/2021 09:41 am Report this Post to the Staff
jbuck Moderator United States 190400 Posts	Posted 09/14/2021 10:17 am Quote: Apologies if this has been posted before. Once or twice. http://goccf.com/t/289494 http://goccf.com/t/378592 A fun re-watch though. Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
Bump111 Pillar of the Community United States 3331 Posts	Posted 09/14/2021 10:19 am Quote: They are using good old soap 'n water before burnishing the blanks. My thoughts, too. Thinking this is where we get our milk spots - incomplete rinsing and drying. "Nummi rari mira sunt, si sumptus ferre potes." - Christophorus filius Scotiae Report this Post to the Staff
jbuck Moderator United States 190400 Posts	Posted 09/14/2021 10:43 am Quote: Thinking this is where we get our milk spots - incomplete rinsing and drying. The residue is being pressed into the coin under extreme heat and pressure. Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
Conder101 Bedrock of the Community United States 17884 Posts	Posted 09/14/2021 11:32 am Quote: They are using good old soap 'n water before burnishing the blanks. "And other cleaning agents." Report this Post to the Staff
PlumCrazy814 Pillar of the Community United States 902 Posts	Posted 09/14/2021 3:36 pm it never gets old Report this Post to the Staff
Dearborn Moderator United States 99180 Posts	Posted 09/14/2021 10:49 pm Great video.. thanks! Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
	Replies: 7 / Views: 1,239

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