Different picture, same year

1982: double rim or somthing like that

crown near to rim

O near to rim

 and 1989, same wierd rim

1982: weird rim, 1 near to rim  

and 1989: weird rim, 1 near to rim, 10 closer to Ore

The “double” rim comes from them being handled in coin machines later in circulation.

The differences in monogram size is already in the comments of the page.

Doesn't look like scratches from a coin rolling machine IMO, could be weak die pressure resulting in suboptimal metal flow were a wave of metal from the center doesn't reach the rim.

Yes. The page describes a different size of the image, but the change should have taken place in 88 years, i.e. one size before that and another after that. However, I have the same year of both sizes. 1982 both big and small picture. I tried to take a better picture of this edge, but I didn't really succeed. However, I found a similar phenomenon on the internet. In the picture I found, the inner rim is significantly narrower.  Wraps around a whole coin and is the same width as the original rim. 

I have looked through your pictures more carefully, and also looked through my own coins.

For 1982 some of my coins looks to be the wide rim variant, but its difficult to see by just looking at one coin at a time.

Your 1989 coin just looks like its been through a rolling machine.