Look for quarters with the "S" mint mark, indicating a silver-clad version.
Uncirculated Bicentennial quarters are far more valuable than circulated ones.
Seek out proof versions, which were produced in limited quantities.
Check for rare mint errors, like double dies or off-center strikes.
Identify the difference between Type I and Type II reverse designs.
Professional grading is essential to confirm condition and boost value.
Silver Bicentennial quarters hold intrinsic metal value, adding to their worth.
Follow auction results to understand current market demand for rare finds.
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