1979-S US Proof Set ID Clarification

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Author	Replies: 7 / Views: 10,199
mdpmedia Pillar of the Community United States 3546 Posts	Posted 04/16/2012 12:56 am Hello, I just picked up this piece at a yard sale for $ 15 and wanted to know if I paid too much. All of these six coins have an S mint mark per the attached fuzzy-looking photo that my Epson produced scanning through the hard plastic covering. The 2012 r s yeoman blue book has two types of 1979-S proof sets: a) filled S @ a $ 4 current value b) clear S @ a $ 50 current value Here are my questions: 1) What is the metal composition of 'each' coin? 2) If four of the six coins are determined to be composed of silver, why does the blue book have a current value of only $ 4. 3) Do ALL proof set coin sets have a 'S' mint mark produced in San Francisco? 4) Is the rarity of this piece based only upon the presence of a clear 'S' mint mark on the Susan B. Anthony coin or should other factors be taken into consideration? 5) Are these close up photos showing a clear S or a filled S? Please note that the second close up photo of the 'S' is taken with the coin rotated 180 degrees compared to the first shot. Report this Post to the Staff

biggfredd Rest in Peace United States 9104 Posts	Posted 04/16/2012 02:52 am Quote: 1) What is the metal composition of 'each' coin? copper cent, CuNi nickel, non-silver clad on the rest. Quote: 2) If four of the six coins are determined to be composed of silver, why does the blue book have a current value of only $ 4. They're not. Quote: 3) Do ALL proof set coin sets have a 'S' mint mark produced in San Francisco? Proofs from 68-up with S mintmarks were from SF Quote: 4) Is the rarity of this piece based only upon the presence of a clear 'S' mint mark on the Susan B. Anthony coin or should other factors be taken into consideration? Other than errors or exceptional high TPG, just the S on Susie counts. Quote: 5) Are these close up photos showing a clear S or a filled S? I'd say clear (type 2), but I am not an expert on these. Side by side, I could tell. If it is, you made out like an obese rodent. Report this Post to the Staff
mdpmedia Pillar of the Community United States 3546 Posts	Posted 04/16/2012 04:32 am I recently found these side-by-side pictures and related descriptive verbiage comparing a clear(type 2) vs. a blob(type 1) S mint mark. Both the author and authenticity of this comparative study, however, are unknown to me so I still need CCF members' input insofar as to whether or not these articles and related photos are accurate. Additional opinions are also still welcomed regarding as to whether or not the featured Susan B. coin is a 'clear(type 2)' variety since BiggFredd was not 100% sure. Finally, what as the last year that San Francisco produced a silver proof coin? thanks, mdpmedia Report this Post to the Staff
mdpmedia Pillar of the Community United States 3546 Posts	Posted 04/16/2012 05:03 am I corrected myself by finding the fine print below the above photos and verbiage I just posted. It appears that Ken Potter produced this narrative and related pictures. Report this Post to the Staff
biggfredd Rest in Peace United States 9104 Posts	Posted 04/16/2012 08:03 am Quote: Finally, what as the last year that San Francisco produced a silver proof coin? 2012 If you mean in the regular 5-6 coin sets, 1970. There are also premium silver sets, commem dollars, 71-76 Ikes, ASEs, etc. Report this Post to the Staff
biggfredd Rest in Peace United States 9104 Posts	Posted 04/16/2012 08:14 am Forgot the 82s commem Washington and 93s Bill of Riots halves. Report this Post to the Staff
mdpmedia Pillar of the Community United States 3546 Posts	Posted 04/16/2012 3:14 pm Would anyone else require another increased magnification closeup photo of the Susan B.'s 'S' mint mark in order to be able to give their opinion as to the existence or not of a Type II coin? Because of the presence of the encasing plastic I seem to be encountering difficulties producing a larger and more detailed photo. I will try other photo methods, however, but would prefer to first see additional opinions and comments as to whether or not a larger and clearer photo is really going to add anything additional of value to the decision making process. Thanks, mdpmedia Report this Post to the Staff
wquinn Pillar of the Community United States 2295 Posts	Posted 04/16/2012 3:39 pm It does look like a clear S to me. Awesome find! Report this Post to the Staff
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