couple of US coins.

Man thats neat stuff !
Wolfy

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http://www.thunting.com/smf/index.php/topic,15584.msg100127.html#msg100127

Very nice New Jersey copper.  Great condition for being a ground find.  Based on your diagnostic of Maris 48-g, it has a rarity of R-1 or URS-12, with 1,000-1,999 known.

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http://www.thunting.com/smf/index.php/topic,15584.msg107953.html#msg107953

You're welcome John.

I'd estimate this specimen to be around VG-8. Others may disagree; Pre-Federal coinage doesn't have explicit grading guidance as U.S. Coinage does.   And my focal areas are more with other Pre-U.S. coinage.

My only concern with this copper is that it appears to me to have been cleaned, based on the color of its rims. 

Q. David Bowers book, Whitman Encyclopedia of Colonial and Early American Coins (2009), lists Maris 48-g, VG-8, at $150 USD.  That's about what I've paid and sold retail for similar NJ specimens.

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http://www.thunting.com/smf/index.php/topic,15584.msg108138.html#msg108138

For the most part, 1964 was the last year for dimes and quarters.  [Basically] 1969 for halves.

Here's a link that explains it for the most part...

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Also, more detailed information can be obtained from the Red Book.

Perhaps this summary may help:

Dimes & Quarters
89.24% through 1836
90% thereafter.
Regular production of 90% silver through 1964 for quarters and dimes.
Thereafter silver-containing proofs were issued.
Silver clad bicentennials were also produced for quarters.

Halves
89.24% through 1836
90% thereafter.
Continued to be produced for circulation from 1965-1969 with 40% silver.
(Silver clad mint sets for 1970 halves were also produced.)
Thereafter, only silver-containing collector specimens were issued.
Silver clad bicentennials were also produced for halves.

Dollars
Some silver issues were produced for Eisenhower; Peace and prior comprised of silver.
Silver clad bicentennials were also produced for Eisenhowers.

Half-Dimes
89.24% silver through 1836, thereafter 90% silver (until ceased 1873.)

3-Cent Silver Pieces
75% silver from 1851-1853, 90% silver thereafter through 1872.
(1873 too, but were only released in proofs.)

WWII Nickels
1942-1945 comprised of 35% silver.

20-Cent Pieces
1875-1878 90% silver.

Of course, until the Coinage Act of February 21st, 1857, foreign coins (incl. silver) were permissible for commerce as well.  You may view the act here:

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Hope this helps.

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