Everything posted by delta
Glad to see this ancient thread resurrected. My latest thought on the subject is that Mercanti mass-produced signature labels can actually reduce the value of a slabbed coin simply because of the perception of gullibility. The idea is that either the seller or somebody along the line was conned into thinking there was added value to having the signature included. Ultimately, when you try showing off your collection to a knowledgable numismatist, they will then scoff at you for having paid extra for an enclosed Mercanti signature, it will become an embarrassment, you can be shamed for possessing it.
Furthermore, as I argued in a previous discussion thread, coins labeled "first strike" are probably on average slightly inferior to those without the designation, and therefore "first strike" labeled coins should generally sell for a slight discount, or preferably be avoided.
If you already have intact rolls or boxes of early silver eagles purchased about when issued, you should definitely scrutinize them carefully for possible 70s, and submit the best candidates to NGC. The limitations are the quality of the materials and your grading ability. However, don't realistically expect to find any 70s in those you've newly obtained, because they will almost certainly have been checked by previous owners. If you're fortunate enough to get any 70s, you can definitely get close to the price guide amounts for them by submitting to auction at such reputable places as Great Collections.