dawg, this is basic 411, you should know this even if you ain't no coin roll hunta. But there is never any harm in ask'n a question:
for half dollar's
1965-1970 = 40%
before<1964= 90%
there were no 40 percenters made for any other coin than halves (apart from ikes for limited release in the 70s), so basicly in terms of quarts, dimes, 64 and before= 90%. dont be spreading this info around cause the silver is starting to dry up, too many people viewing this forum now-a-days dragging people to the likes of Skunksville.
Wrong. No bicentennial 40% quarters? No 90% dimes, quarters minted after '64? No mention of commemorative halves that might be 90% or clad depending on the issue? Not to mention 90% halves minted after '64? You'll have your answers if you look through my posts. I don't feel like regurgitating the information so early before my coffee.
Keppy, welcome to the madness. We know you from the realm of dirt-fishers.
Now that I had my coffee for breakfast and a smoothie for lunch, I've taken the time to search through my past posts. On December 5th of last year, I posted the following:
With regards to 90% silver coinage -
1. 64 and below is obvious
2. The Mint began in 1992 issuing both clad proof sets and silver proof sets which are 90% silver for the half, quarter, and dime.
3. Post '82 commemorative is really wrong to issue a blanket statement like that. More likely a half commemorative after '82 will be clad. The only exceptions are the '82 GW 90% silver half and the James Madison (Bill of Rights) 90% silver half dollar. All other modern commemorative half dollars are clad. Commemorative dollars are 90% silver.
40% silver coinage -
1. 65 -70 halves
2. Bicentennial S mint business strikes quarter, halves and Ikes.
3. Bicentennial S mint proofs were issued in clad and 40% silver for quarter, halves, and Ikes.
4. Other Silver Ikes - '71, '72, '73, '74. Minted in San Fran; both proof and business strikes (Brown and Blue Ikes). San Fran also produced clad proofs during '73 and '74.