9Xxx Series Iridium Tip Profiles

[vnam43]

I've refurbished three pens to very good working conditions with 2556 nibs. Recently though, while trying to correct a problem with a nib the rolled portion broke off -- I now have another nice stub. This was not unexpected because of the wear it already had. So I decided to try the 9XXX series,

 

But I find little and conflicting information regarding the Master Series tip construction and would appreciate assistance.

 

1 - What did Esterbrook mean when it billed the Master Series as being "tipped with Iridium at the Ball, or wear point?"

 

2 - Is it just just the tip rolled under and then Iridium welded or a true round Iridium bead on the flat tip end?

 

I would appreciate responses containing profile images - if avail - of 9XXX where the bead/ball is visible. Especially looking for images of 9461, 9555, and 9556, but others would be good for comparison.

 

Tks in advance.......

[pajaro]

1. Iridium tip, ball or edged in the case of italics.

 

2. What do you think? Rolling up the tip and then welding iridium on it -- does it make sense? Seems weak and overly complex to me.

 

Steel with iridium tipped on the end is the way it was.