You should be able to get a COA from someone who gets theirs graded. The grading can act as the COA for the most part, and a lot of folks do not slab the COA for these. Check on ebay for empty box and COA.

it is easy to tell the difference. Oddly, the bullion ones go for similar prices at secondary market as the P mints. WHich I find rather unusual

But bullion ASEs can have the W mark, right?
The P ATBs and the bullion ATBs are easy to distinguish. Most of mine are bullion – I actually like the shiny finish better – and I got them at very small premiums (well, not so much recently but from 2010 to 2019 the premiums were small) and basically just for bullion purchase that looked cooler than 5oz bars. I felt it was a great deal for silver – you purchase them basically at the same price as a 5oz bar but the resale is significantly higher. I’m actually surprised how the value of these has played out. It seems the bullion go for similar price in secondary market as the collector P versions. Maybe folks just didn’t know the difference, I don’t know. For a while, provident metals had great deals on ATB coins but nothing silver is a good deal anymore. I have every series minus a few, the 2010 and 2012 are the most in demand / hardest to find in reasonable prices.
Thanks Kaiser – for your response.

Thanks Comrade Kaiser (first time that phrase ever appeared).

I was aware of the mint mark differentiator, but never considered the use of OGP to cheat folks (not for ATB 5 ozs. at least).

After a brief panic, I was relieved of angst upon recalling nearly all my 5’ers are bullion, the rest are from the mint or slabbed.

Hawaii is my favorite, because of volcano, but the $400+ price is a nice bonus for original MSRP (Mint Stratospheric Rip-off Price) purchasers.

The picture of the proof coin is a conventional proof quarter in terms of size, NOT a 5 oz. There is no proof 5 oz only BU/burnished with mint mark sold by the mint, and non-burnished bullion version sold by “select” retailers.

I like the 2010 and 2012 designs best among the series, but I do agree this one is super cool…. also like the blue ridge parkway (but I live there so biased)

Okay I see, the proof is only the regular quarter and not the 5oz series… I didn’t think they made proof ATB 5 oz coins from P or the bullion series.

I did not know the mint made any proofs of the series in 5oz. That is news to me. They do not advertise them so I wonder how one goes about to get a proof 5oz ATB coin….?

I now have the series (not all P mints, some are bullion) and the HI volcano is BY FAR my favorite.
All the 2010 and 2012 coins are the most in demand, it seems, and the highest cost secondary market.
Like others posted here, I received mine in unprecedented speed – literally within 2 days.