Is this a 1979 $1 Susan B. S blob?

Discussion in 'Error Coins' started by Tankkiller275, Sep 18, 2020.

  1. Tankkiller275

    Tankkiller275 Active Member

    It is my understanding the S blob on a 1979 Susan B. dollar is only found on a proof coin. I have several of these coins where the S mint mark is clearly defined or filled in to some degree... Only this one coin has the edge around the mint mark which looks identical to the images I've noted to the proof coin.

    The coin is the same thickness and approximate weight as my other coins. I know the blob coins aren't worth much but wanna know if they're out there without having been a proof coin first.


    Only picture I have of this at the moment. I have to use my phone to take picture of microscope screen.
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  3. expat

    expat Remember you are unique, just like everyone else

    Are you using Win 10?
  4. Tankkiller275

    Tankkiller275 Active Member

    I have win 10 on my computer... Microscope has own screen. Need micro chip to store pictures. I'm still sorting out things...
  5. expat

    expat Remember you are unique, just like everyone else

    Can you bypass it's screen with a USB cable to your PC
  6. Tankkiller275

    Tankkiller275 Active Member

    Got it working... will add more pictures in a bit...
  7. Paddy54

    Paddy54 Variety Collector

    Its just a mint mark style SBA mint mark styles
  8. Tankkiller275

    Tankkiller275 Active Member

    Here are a few more directly from the microscope.

    WIN_20200918_15_26_31_Pro.jpg WIN_20200918_15_25_51_Pro.jpg WIN_20200918_15_26_57_Pro.jpg
  9. Collecting Nut

    Collecting Nut Borderline Hoarder

    Looks like it was damaged then worn.
  10. Tankkiller275

    Tankkiller275 Active Member

    Thanks Paddy... So a San Fran MMS-001
  11. Tankkiller275

    Tankkiller275 Active Member

    CN... yes, she has taken some hits. It is amazing what a microscope will bring out now that I have one.
  12. Conder101

    Conder101 Numismatist

    The S mintmark punch used for the circulation strike dies was the same punch used for the Type 1 S proof dies.
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