Standing Liberty quarters (1916-1930) are one of the most beautiful US coin designs but also one of the most wear-prone. Several varieties and errors exist, with the 1918/7-S overdate being the most famous.
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Scan My CoinAn 8 was punched over a 7 in the date, creating a visible overdate variety.
How to check: Examine the 8 in the date under magnification. Remnants of a 7 should be visible, particularly at the top.
$1,000 - $10,000+Various years show doubling on the date, stars, and Liberty's features.
How to check: Check the date numerals and the stars on the obverse for signs of doubled impressions.
$25 - $300The S mint mark shows evidence of being punched into the die multiple times.
How to check: Look at the S mint mark on the obverse for secondary impressions or tilting.
$15 - $100Raised lines from die stress, common on this series due to the high-relief design.
How to check: Look for raised lines across the design, especially through Liberty's shield and the eagle.
$5 - $50The 1918/7-S overdate is the most valuable, ranging from $1,000 in low grades to $10,000+ in higher grades. It is one of the top US coin overdates.
The date sits on a high point of the design and wears off quickly in circulation. Coins from 1916-1924 are especially prone to this. The design was modified in 1925 to recess the date.
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