1981 US Proof Set - Type 1 Or Type 2?

I apologise in advance if I've put this post in the wrong forum but it seemed to me to be the most appropriate. I have few sets of 1981 Proof coins and apparently there is a very big difference between those which are of Type 1 versus Type 2. I read more about how to tell one Type from the other on the article in the URL below, but I'm still not sure what I have.

http://www.ngccoin.com/news/viewart...ArticleID=29

Quote from above article:
"The differences in the 1981 types are often what dealers and collectors have trouble identifying. The difference lies in the style of the mint mark punch. The Type 1 is the same punch used to make the Type 2 1979 coinage. The Type 1 has a pointed top when compared to a flat top of the 1981. The Type 2 has bulbous serifs in comparison to the Type 1 and the serifs do not touch the inside of the S. It is these small differences that give the coin so much more value, $325 for the set versus $11."

Type example (from above article - I think this is a Type 2 based on the file name but the article isn't clear on which picture is which Type):
http://www.ngccoin.com/news/enews/i...981_2_sm.jpg

Type example (from above article):
http://www.ngccoin.com/news/enews/i..._1981_sm.jpg

My coins:




Any thoughts are very appreciated.