Does it matter? By that, I mean, are there any assets that are in your husband's name alone? These are the only assets that would be covered by the Will. If there are no assets like this; if everything is held in joint names or with you as the beneficiary, then I would not worry about your husband's Will.
If there ARE assets that are titled in his name alone and probate is necessary, then you should meet with an attorney to determine whether or not the copy can be admitted or whether you need to look harder for the original. In Michigan, a court will admit a copy of a Will, but it is slightly more involved than using the original.
James Frederick
Most courts will accept a copy when their is no evidence that the previous Will was destroyed and there is evidence that the Husband wanted it to be enforced.
It is a troubling area of law because the sheer lack of an original usually suggests that it was destroyed (rather than lost). When you revoke a will you are supposed to physically rip it in half or destroy it to revoke it.