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Thread: 1970 D & S Kennedy Halves - How Scarce?

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  1. #1
    us
    May 2018
    Maryland
    Tesoro Cibola Tesoro Golden Sabre Plus Garrett Master Hunter 7
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    All Types Of Treasure Hunting

    1970 D & S Kennedy Halves - How Scarce?

    These coins were only distributed in mint and proof sets - but so were other halves and yet we find those. Why no 1970s?

    Has anyone done a population analysis of the 40% halves by date? IMO, we should be seeing more 1970s in CRH - if the mintage records are correct.
    1. Never argue with a fool; onlookers may not be able to tell the difference.

    2. Always do right; this will gratify some and astonish the rest.
    - Mark Twain






    Final 2018 CRH: Boxes of halves: 68
    Total skunk boxes: 30
    90% halves: 82
    40% halves: 171

  2. #2
    us
    Dec 2009
    South East, MI
    my eyes
    531
    362 times
    We have found 1 in ten years of searching. We average one box a week plus about 5 banks stops looking for customer wrapped rolls.

    Keep on Searching
    Dad and Tanner
    Megalodon likes this.

  3. #3

    Sep 2012
    94
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    All Types Of Treasure Hunting
    Quote Originally Posted by Megalodon View Post
    These coins were only distributed in mint and proof sets - but so were other halves and yet we find those. Why no 1970s?

    Has anyone done a population analysis of the 40% halves by date? IMO, we should be seeing more 1970s in CRH - if the mintage records are correct.
    Courtesy of Coinflation:

    Year Mintage Numismatic Value Range
    1965 65,879,366 $2.50 - $20.00
    1966 108,984,932 $2.50 - $22.00
    1967 295,046,978 $2.50 - $20.00
    1968 D 246,951,930 $2.50 - $20.00
    1969 D 129,881,800 $2.50 - $22.00
    1970 D 2,150,000 $5.00 - $40.00

    I've found 2 in the wild and picked up one proof set at a garage sale for $1.

    Or Let's put it this way:

    Year Mintage % of Total
    1965 65,879,366 7.63%
    1966 108,984,932 12.62%
    1967 295,046,978 34.15%
    1968 D 246,951,930 28.59%
    1969 D 129,881,800 15.03%
    1970 D 2,150,000 0.25%
    1976 15,000,000 1.74%

    I added in 15 million for bi-centennials as there were the following: Silver Clad (S): 11,000,000; Silver Clad Proof (S): 4,000,000

    So from a population perspective, 1970 half dollars represent a quarter of 1% of all silver 40%'s.
    Last edited by Walla183; Jan 07, 2019 at 09:32 PM.

  4. #4
    us
    Apr 2005
    North Carolina
    Garrett GTI 2500 Garrett AT Gold
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    All Types Of Treasure Hunting
    Like the previous poster said, total distributed is the reason. You assumed that all totals produced each year are the same.
    Megalodon likes this.
    2018 COIN ROLL HUNTING TOTALS!

    Wheats..287
    Buffalos..0
    war nickels.0
    Silv Dimes...-0
    Silv Quarters-0/0
    Barbers-0/0
    Walker 0
    Bens- 0
    Kenn. 90%- 0
    Kenn. 40%- 4
    Proof- 0
    Silv. Proof -0
    Commemorative-0/0

  5. #5
    Charter Member

    Jul 2015
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    All Types Of Treasure Hunting
    Click image for larger version. 

Name:	Ender.jpg 
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    My only one was an ender!

  6. #6

    Dec 2014
    Far North Corner of CA
    AT Pro and a Garrett Carrot
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    I'm learning
    Honorable Mentions (1)
    Quote Originally Posted by scottw View Post
    Click image for larger version. 

Name:	Ender.jpg 
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    My only one was an ender!
    Now THERE'S a "What are the chances?" photo!
    Last edited by Greastart; Jan 08, 2019 at 02:07 AM. Reason: EMPHASIS
    Megalodon, enamel7, scottw and 1 others like this.
    An Ode
    To William Jefferson Clinton

    He smoked but didn't inhale
    Poked, but didn't impale
    Made aware of the dress
    He was forced to confess
    A snail can't deny his own trail

  7. #7
    us
    May 2018
    Maryland
    Tesoro Cibola Tesoro Golden Sabre Plus Garrett Master Hunter 7
    495
    623 times
    All Types Of Treasure Hunting
    Quote Originally Posted by Walla183 View Post
    Courtesy of Coinflation:

    Year Mintage Numismatic Value Range
    1965 65,879,366 $2.50 - $20.00
    1966 108,984,932 $2.50 - $22.00
    1967 295,046,978 $2.50 - $20.00
    1968 D 246,951,930 $2.50 - $20.00
    1969 D 129,881,800 $2.50 - $22.00
    1970 D 2,150,000 $5.00 - $40.00

    I've found 2 in the wild and picked up one proof set at a garage sale for $1.

    Or Let's put it this way:

    Year Mintage % of Total
    1965 65,879,366 7.63%
    1966 108,984,932 12.62%
    1967 295,046,978 34.15%
    1968 D 246,951,930 28.59%
    1969 D 129,881,800 15.03%
    1970 D 2,150,000 0.25%
    1976 15,000,000 1.74%

    I added in 15 million for bi-centennials as there were the following: Silver Clad (S): 11,000,000; Silver Clad Proof (S): 4,000,000

    So from a population perspective, 1970 half dollars represent a quarter of 1% of all silver 40%'s.
    Thanks for calculating those. With a large enough sample size from CRH, we could compare our found % by date to the % minted to test for significance between the expected and observed % at different alpha levels. With an "expected" of 0.25%, we should be finding 1 1970 out of every 400 40% halves. I suspect the actual observed % may be much lower. I need to increase my sample size!
    1. Never argue with a fool; onlookers may not be able to tell the difference.

    2. Always do right; this will gratify some and astonish the rest.
    - Mark Twain






    Final 2018 CRH: Boxes of halves: 68
    Total skunk boxes: 30
    90% halves: 82
    40% halves: 171

  8. #8
    DTW
    DTW is offline

    Oct 2015
    3
    5 times
    All Types Of Treasure Hunting
    The numbers make sense, except for one key factor: Most of the 40% halves were released for circulation, while all of the 1970 D & S halves were bought at a premium and part of sets. Therefore most people who have these halves, have them as part of sets (except for those that were freed and released into the wild on purpose or through theft etc.). So they are actually much rarer than 1 out of 400 for all 40% halves, as we are actually talking about two very distinct populations: circulated and mint/proof set. The fact that these two populations mix, albeit in very small numbers, is why we all CRH: to take advantage of the fact that most people don't know or care about the value of what is in their pocket, dresser drawer, grandpa's collection, etc.
    Avago, Megalodon and MotherOfGeeks like this.

  9. #9
    us
    Mar 2015
    Bodymore, Metalland
    Minelab Excal, Safari, Garrett infinium, Whites prizm 4
    634
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    All Types Of Treasure Hunting
    I've got two now.
    Megalodon likes this.

  10. #10

    May 2017
    Garrett AT Pro
    236
    215 times
    Metal Detecting
    I found one, a 1970-S Proof, in 238,000 halves searched. I still haven’t found the 1970-D. The toughest Kennedy to find in the wild IMHO.
    Megalodon likes this.

  11. #11

    May 2017
    Garrett AT Pro
    236
    215 times
    Metal Detecting
    Here's the picture.Click image for larger version. 

Name:	054DE6E6-DDD7-45A2-AB7B-5BFAF52ED124.jpeg 
Views:	23 
Size:	1.14 MB 
ID:	1668937

  12. #12

    Dec 2013
    Northern US
    Minelab 705
    205
    91 times
    All Types Of Treasure Hunting
    I’ve found 2, 70D, and 1, 70S in the equivalent of about 170 boxes. I consider myself lucky.
    Megalodon and Greastart like this.

  13. #13
    us
    Apr 2016
    Washington
    155
    159 times
    Coin Roll Hunter, Thrift Store Hunter & Dumpster Diver
    I'm still looking for my first. I've only been at this seriously for about 3 years.

  14. #14
    Charter Member
    us
    Nov 2012
    Maryland
    XP Deus, Tesoro Cibola
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    Banner Finds (6)
    I never found one.

  15. #15
    us
    Coincrazed

    Aug 2013
    126
    128 times
    Coin Roll Hunting and Numismatics
    Quote Originally Posted by Greastart View Post
    Now THERE'S a "What are the chances?" photo!
    But if you do, you have to oversensationalize it and add theatrics to it to get attention and views. Post a pic of yourself making an 'O' face, bugging your eyes out and looking at it on a table, and put all caps in the subject line.
    LooseChange likes this.
    "Here's the smell of the blood still: All the perfumes of Arabia will not sweeten this little hand." - William Shakespeare, 'Macbeth'

 

 
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