A Bicentennial Quarter worth nearly $50 million and three more worth over $150,000 each would be remarkable finds indeed.
However, such valuations would be highly unusual and would likely require these quarters to possess extremely rare attributes, such as unique minting errors, historical significance, or provenance.
While there are valuable coins in the numismatic world, valuations in the tens of millions of dollars for single quarters or over $150,000 for multiple quarters are not typical for common circulation coins like Bicentennial Quarters.
If there are specific details or characteristics that make these Bicentennial Quarters so valuable, it would be fascinating to learn more about them.
Verifying these claims with reputable sources in the numismatic community or consulting with experienced coin appraisers would be crucial to understanding their true worth.
Overall, it's essential to approach claims of extremely high values for coins with caution and skepticism, as they may not always reflect the true market value of the coins.