This says there are 1974 D 40% silver http://coinancials.com/CoinImages/Ike_dollars_bydate/1974-d.html#.XL87pbcpA0M
This is from Heritage Auc. Hi Imho,Yes, I’m sure it could be possible but you have to have it tested and graded.
I've handled numerous 1974-D and 1977-D 40% silver Ike Dollars, starting back in the mid-70's, when they were first discovered. I bought a good number of them from a Las Vegas Casino employee who had access to the Mint Sewn Bags the Casinos were getting of Ike dollars, to be used in their slot machines, etc. The OP's coin is NOT a 40% silver Ike. But, it appears he'll have to pay the submission fees, etc. to find that out. Please report back to us when you get the coin back from PCGS, NGC, or ANACS
The surfaces on both sides of the coin, in all of the photos, show a clad surface. The 40% silver Ikes, in either Proof or BU, look like 90% silver coins, for comparison, not close to clad surface coins.
The 74-D silver Ike is a very rare error coin. Weigh your coin. 24.58 grams. Surface is 80% silver, center is 20% silver on the silver Ike planchets.
Paddy I did read your post and got the joke. As for the OP coin, you'll have to weigh it on a very precise scale. If Fred can tell by looking at it, your scale seems to be off.
There is a weight tolerance, so it's possible the weight is correct, or very close to what was posted. That doesn't change the fact that the coin is not silver - 'clad surfaces' are clearly visible from the photos.
40% silver halves show a reddish 'tint' on the edge, but not Silver Ikes, as far as I can recall. (layers are different) If they do, it's a slight reddish/copper tint, and nothing that would be confusing with a normal clad edge on an Ike dollar.
40% silver... outer layers of .800 silver, .200 copper bonded to inner core of .209 silver, .791 copper I carry a 40% silver '71S Ike as a pocket piece and the edge is slightly two-toned silver. You know how a copper-nickel clad often has the middle layer of copper smeared towards one face of the coin so that it appears to only have two layers (1 copper and 1 nickel clad)? Well this Ike has sorta two-layers of silver - one layer slightly darker than the other. But overall nothing on the edge looks like copper. (edit: see @Fred Weinberg's description above)
That's a clad Ike dollar edge. Thanks for posting the reeded edge, and I apologize for being so negative. I just try to deal with observable reality.
Since I can't edit my post ... which is goofy ... I'll have to state it here. [<< With ample supplies of Eisenhower dollars, the Federal Reserve had no need to order any in 1973, and none were struck for circulation. >>] Sorry. Now corrected.
An edge that copper colored is never a question in regards to silver. Always look at the edge first. Dimes, quarters, halves, dollars. It's just instinct, you don't even have to say it.
Wrong. I gave away to grandbabies every type of ike 73 there is. They came in sets. I understand you mis spoke