1990 Proof Quarter pulled from circulation

Discussion in 'US Coins Forum' started by cplradar, Apr 25, 2021.

  1. cplradar

    cplradar Talmud Chuchum

    I found this 2 weeks ago. I gave it an acetone bath. It looks like it needs another one. It has this blue toning happening across the top of the coin. I wonder if I can do anything to conserve it.

    1990_quarter_proof_r_2.png 1990_quarter_proof_r.png 1990_quarter_proof_o3.png 1990_quarter_proof_o_2.png 1990_quarter_proof_o.png
     
    cplradar, Apr 25, 2021
    #1 + Quote Reply
    SensibleSal66 and potty dollar 1878 like this.
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