Removing a coin from a lucite/acrylic paperweight block.

Discussion in 'Coin Chat' started by Mr. Numismatist, Oct 1, 2025 at 3:49 PM.

  1. Mr. Numismatist

    Mr. Numismatist Strawberry Token Enthusiast

    I recently bought this Uncirculated 1964 Kennedy Half Dollar in an acrylic triangle and I wanted to break it out. Here's how I freed it.


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    1) Using a hand drill I made a series of holes directly above the edge of the coin.

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    I repeated this process on the bottom continually checking that I'm not hitting the coin with the drill bit.

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    2) I cut two grooves on either side of the block to connect the end holes. I also cut across the two sets of holes.

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    3) Using a hammer and a screwdriver as a wedge, I started to crack the block. Using light taps I was able to crack it in two. My goal is not to force the screwdriver all the way through (and thus, damaging the coin), but rather to create tension and allow it to break on it's own.

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    4) The coin is still stuck fast, so I used the same process to now split the half-block.

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    5) This being successful, I was able to remove the coin with a gloved hand from the clinging remaining chunk using light pressure and pulling.

    Viola!

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  3. physics-fan3.14

    physics-fan3.14 You got any more of them.... prooflikes?

    Yes... but why?

    You had a cool paperweight... now you have a generic half dollar.

    I don't understand why you chose to do this.
     
  4. green18

    green18 Unknown member Sweet on Commemorative Coins Supporter

    Some things are better in hand than entombed in plastic.....:)
     
  5. Spark1951

    Spark1951 Accomplishment, not Activity

    @Mr. Numismatist …that is a waaay cool rescue!

    I was always of the opinion that coins entombed by lucite, epoxy or resin were irretrievable, but you really have a good solution. I thought the substances adhered to the coins’ surface and that the coin would be destroyed if removed, and I’m thinking substances other than lucite/acrylic may have that exact problem.

    I’d never seen or heard of coins being recovered from these substances before today and your post. Spectacular success!

    BTW,…I don’t see someone doing this on the acrylic toilet seat with embedded pennies…unless you saw a 1982 Denver Small Date in there somewhere. You would have to do all the work just to weigh it to find out…Spark
     
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  6. green18

    green18 Unknown member Sweet on Commemorative Coins Supporter

    Just a thought. Would acetone react with the Lucite? Maybe another way to extract something entombed? Then again, if so, the reactive nature might damage the coin?
     
    Mr. Numismatist likes this.
  7. Mr. Numismatist

    Mr. Numismatist Strawberry Token Enthusiast

    I enjoy it more as a coin than a paper weight. Also, I wanted to experiment if it could be done without damaging the coin.
     
  8. alurid

    alurid Well-Known Member

    Good job!
    I have had the fun and challenge of removing coins and paper money from lucite/acrylic blocks. I used a hacksaw to break the block into several pieces.
    Acetone will break down the solid plastic , but I found it a very slow and messy process.
     
  9. SensibleSal66

    SensibleSal66 U.S Casual Collector / Error Collector

    I would have left it alone. Now it looks scratched or damaged. o_O
     
    Mr. Numismatist likes this.
  10. Mr. Numismatist

    Mr. Numismatist Strawberry Token Enthusiast

    Those are all die polishing lines. You can even see them in the first picture when the coin was still incased.
     
    SensibleSal66 and Spark1951 like this.
  11. SensibleSal66

    SensibleSal66 U.S Casual Collector / Error Collector

    I see said the blind man. :)
    Just like those mint workers. Can't leave well enough alone, sort of like me. :eek:
     
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