What is the value of an 1806 US quarter?

Answer 1

Depending on grade, features, etc the value can range from $25,000 to $125,000.

Excerpt: 1806/5 25C MS64 PCGS. CAC. Ex: Garrett. B-1, R.3. The 1806/5 overdate quarter is one of the prominent, "naked eye" overdates that are so popular with collectors today. It is an easily visible overdate that can be seen without any magnification.

Certain experimentation was undertaken in the engraving and coinage department during 1806. Seldom do overdates of any era originate with dies that were actually used in previous years. Nearly all overdates, especially in the early dies of our coinage, resulted from dies engraved in previous years but unused. It is believed that dies actually used became "work hardened" and brittle, and were unable to be successfully altered in the mint. Such dies remained in use until they wore out, producing backdated coinage that now renders original Mint coinage records almost obsolete.

However, 1806/5 overdates are known for quarters, half dollars, and quarter eagles. In each of these three instances, the previous dies dated 1805 were actually used during the year, then altered by Mint engravers after the beginning of the new year. In the case of the quarter dollar, the obverse and reverse are each from the dies that were previously used to coin the 1805 B-4 quarter.

Graded MS65 in 1980, and certified MS64 today, this beauty has exquisite surfaces and sharp details with lustrous satin surfaces that are graded by warm gray and gold, accented by lilac and iridescent toning. Today, this wonderful near-Gem matches the color plate in the 1980 Garrett catalog. Comments made by Q. David Bowers in that catalog are equally true today: "In today's era of 'dipped' and 'cleaned' issues, such specimens as this from the previous century [now two centuries] with beautiful original toning are to be prized."