Confused about the 2000 AA coins

Can someone please clarify if for the 2000 (AA) coins, there are only the PMM mark versions?

There is the other one listed above with AA but no PM at all. So should I be looking out for that too or not? To date I have only come across the PMM versions for that specific year and die letters.

Thanks in advance!

I have been looking hard for a couple decades and I haven't seen a 2000 with a PM, and I haven't seen one without a PMM. But Southall says a version with no mint mark exists (and describes a vertical mark near the chapel door on that variant) so I expect they exist.

bjherbison

I have been looking hard for a couple decades and I haven't seen a 2000 with a PM, and I haven't seen one without a PMM. But Southall says a version with no mint mark exists (and describes a vertical mark near the chapel door on that variant) so I expect they exist.

Hmmm. Interesting. Thanks! Will have to keep a keen eye out for it.

I also never seen it but possibly exist in low mintage. 

150 Numista users claim to have it (I guess majority of them have the standard version PMM but they don't care the variants).

Here is the photo of Southall catalogue for this coin: