Spanish Cob Identification

Hi could someone help me with this?  I am confused because off to the right side I see the numeral iii.  

But there is a dot before and after them, so I dont think there is another roman numeral.  For example for Philip IIII.

So what exactly am I looking at here, can someone help me identify the reign time period and denomination based on the picture?  

Thanks

Can you give us the weight please?

Yes, please provide weight and approximate diameter and thickness if possible. Although many of the specific identifiers are worn we can deduce what it is representing itself to be by the following.

Greek Cross indicates roughly the 1571-1652 time period and suggests the Potosi or early Lima Mints. Although statistically almost certainly the Potosi Mint if so.

To begin my thoughts on the shield, I am not entirely ruling out the old world shield with Portugals Coat of arms because there is a large spot on the shield that I am not certain about. Wear on a spot that would make that possibility clear. I will highlight that spot after I think about it and stare at the coin for a while. 

Concentrating on what can be discerned and clues on the inside of the shield and based on the locations and positions  of specific characters on this shield it is likely a Philip III of which he had 5 different type shields during his reign. (1598 - 1621). Needless to say it is almost impossible to be certain which specific shield  yours may be.

Initial impression is a possible 8 Reales Phillp III Potosi 1598 - 1621 although we need more information from you.

Harrykeepthechange

 

Greek Cross indicates roughly the 1571-1652 time period and suggests the Potosi or early Lima Mints. Although statistically almost certainly the Potosi Mint if so.

 

… it is likely a Philip III 

 

Initial impression is a possible 8 Reales Phillp III Potosi 1598 - 1621 although we need more information from you.

Cobs are always very difficult to determinate because of the very bad condition they're usually in, worn, clipped, lettering off strike, lots of varieties, etc.

But by deduction we (sometimes) can come a lot further. By ruling out everything else, and very important IF your coin is on Numista, only two possibilities are left. It's definitely a Philip III, both from Bolivia, like Harry said Potosi Mint (no coins were struck in Lima under Philip III). It's a 2 reales KM# 8 (N#47423) or a 4 reales KM# 9 (N#61945) and these are easy to determinate by weight. 

I rule out the 8 reales because of the inscription to the right of the shield:

Although there are a lot of varieties I can't find any 8 reales with the III like on your coin: https://www.acsearch.info/search.html?term=bolivia+cob+8+reales+1616&category=1-2&lot=&date_from=&date_to=&thesaurus=1&images=1&en=1&de=1&fr=1&it=1&es=1&ot=1&currency=usd&order=0

Agreed. More likely the 2 or 4 Reales but  educated guessed because we dont have the weight.

Here are the pictures requested.  Thickness is about 3mm.  22.41grams.  32mm across.

My question is the lower portion on the shield where I circled it, on all the images I see of Philip III, it is divided vertically in half and there is a figure on each side.  This one doesn't have that, i see a dot in the lower center.  Thanks for the explanations.
 

22.41 g is a bit low for a 8 reales but it definitely rules out the 2 and 4 reales.

But like I said, I can't find any 8 reales with that III at right of the shield.

The more I stare at this thing the more this looks like Portugals Coat of arms but still many of the indicators of Philip III.  Portugals coat of arms is the only coat of arms I can find where on the lower small  shield the two boxes at the top of that small shield jut over to the top of the small lower shield.  Now the weight is off as well and that pesky III to the right of the large shield. Sorry, I cant nail this one down but always have fun trying.  Dare I ask, where did you aquire this and is it possibly a well done replica?

Edit : I ask because these exist, are not well documented, are exceeding rare, highly sought after, and highly collectable but made of gold (Iberian Union 1580-1640) Where diplomacy was playing nice and the Portugese coat of arms was incorporated into the Royal Spanish Hapsberg Shield. This might induce someone to make a replica. 

It's been put away for decades, just getting around to going through some of this now.  But the other things I acquired with it at the time were rare and real. Doesn't mean this has to be, but there is a better chance it is real than not.

Replied to wrong thread.

At this point I am not feeling good about either this one after a year with not a sole able to positively identify it because it simply makes no sense all things considered in my opinion or the alleged 1918 Peso because frankly I never have never seen what appears to be rust like that on a silver coin. I sincerely hope whatever else you have is genuine and positively identified but the two you inquired about are intended to deceive. This is why you instinctively knew something was not right with them and as far as I am concerned it is confirmed. 

I don't think it's meant to deceive but to each his own.  

I do know that it is not ordinary simply because I can't find a comp to all the pictures I've looked at which is why I asked the question here.

Thanks for your input.