I can't seem to find out how much a 1974 40% ike dollar would weight if I came across one, any guidance would be appreciated and thank you .
Serious question here... is there a reason the '74 40% would have a different weight than any of the other 40% Ike's? I'm seeing 24.59g for the weight. And @SensibleSal66 , your chart only has the Clad Ike's, nothing on the Silver Clad. Just a heads up...
@Joy_Matherne - if you just want to see if you have an Ike that might be silver, you can visually compare the two. The color of the surfaces, and the edges. Similar to a clad or 40% Kennedy half.
@Joy Matherne …Yeoman Red Book. You could have found the information yourself there. Or at the NGC US Price Guide…or at the PCGS US Price Guide.
As suggested by Spark1951 the easiest way to get your answer is to look in the Red Book, it has weight and composition for all US coins. And as cwart said, the correct weight for all dates of the silver clad Ikes is 24.59 gm. Even the '74-D and '77-D silver clad examples minted by mistake weigh 24.59 gm. What no one else has mentioned yet is the weight of the regular clad Ikes is 22.68 gm. Yes, there are tolerance levels for all US coins, they are listed in the table posted in post #2 by SensibleSal66. Unfortunately there a few coins where the tolerance is not listed, Ikes are one of the few. And the weight (26.680 gm) listed for Ikes in that table is incorrect, it is a mistake. The weights I listed above are correct and taken direct from the Red Book.
I wish I could rely on that table, because tolerances are so hard to find. But it has flat-out wrong information about many coin weights. I don't know where that table's data was sourced from (and that in itself is a problem!), but if it's wrong on weights, I don't think we can trust it on tolerances. All reputable printed sources I've seen, including the Red Book, say that dimes/quarters/halves have been 25 grams per dollar of face value since the 1873 rejiggering. 2.5 g for dimes, 6.25g for quarters, 12.5g for halves. Different weights for SLQs vs. silver Washingtons? Malarkey.
It comes from here - https://www.amazon.com/Coin-World-A...t=&hvlocphy=9011750&hvtargid=pla-740848129835 - which is the one and only place the info is listed.
Thanks! I might have to order that, just to see if it has citations for the weight-and-tolerance info. If the Red Book and others are wrong about precise coin weights, that's kind of a big deal.
If memory serves, the info came from the mint archives. I think that very unlikely as physically weighing the coins shows us they're not. Of course we also see that with very, very few exceptions, the coins (other than those with extreme wear, defined as VG or lower) fall within the weight tolerances as specified in the Almanac. Given that, what then explains the weight differences in the Almanac ? The only thing I can think of, given that there are only a few, is possible typos that have occurred over the years as the various editions were published. But that's just a guess. And the reason it's my guess is because over the course of my life I've found it beyond rare that any book does not have its share of typos.
