We already have matte proofs, mirror proofs, and reverse proofs. PCGS
is doing a very good thing here. There are many classic coin series (including gold) which have prooflike contrast and reflective fields, but cannot be considered "PL" just because PCGS
did not allow them to be attributed as PL. If you look through old high-end auction catalogs, you will find many coins other than Morgans that had "prooflike" in their descriptions.
The "prooflike" appearance is often a result of fresh die pairs being used, and the more coins those dies strike, the less prooflike they tend to get. But that's not always the case -- with Morgans, for example, worn dies were sometimes polished to remove clash marks and abrasions, resulting in prooflike surfaces on coins that would otherwise show features of later die states such as cracks and deep clashes that won't polish out.
Proof itself refers to the method of striking, not the surfaces of the coin, so there are many Proof issues with MS-like surfaces; if they show signs of actually entering circulation they become "impaired" proofs and receive AU or lower grades, but they're still Proof strikes.
This will be beneficial for gold collectors and collectors of series such as the Liberty Seated, Barber, and especially Mercury/Walking Liberty coins, which previously have been unable or very rarely able to achieve PL designations even in MS66 and MS67 grades that show clear prooflike elements. It also has the (good or bad) side effect of getting collectors who own non-designated coins which they consider Prooflike to resubmit their coins for a shot at the new designation. I don't believe NGC currently offers what PCGS
is about to start doing, so it might even draw in some reholders from NGC, ANACS and IGC for a PCGS
World coin collectors will also benefit as previously PL was not available or very rarely available on many popular world coin series such as German States thalers and aerlier Central/South American crown-size coins (Bolivares, Reis, Dineros, Pesos, Soles, Reales, etc.)
- EAC - TNA - SSDC
Specializing in 1932-1964 Washington quarters
"Most of the things worth doing in the world had been declared impossible before they were done." -- Louis D. Brandeis