Do these woofers look right on these Dunlavys IVA's?

All that I am seeing on the driver cones is what is called doping. There is nothing wrong with the cone. The surrounds, is that what you are referring to? Hard to tell by the pics.

Is your question regarding the cone material? I have no prior experience with this type, but all looks consistent to me. Seller states 9/10 condition, one transaction which appears to have a neutral feedback. Try sending the seller a question. 

Those are drivers by Scanspeak and as 4krowme stated they have a doped cone.
What you see came from the factory as designed. Tom

Here’s a link to images of many IV & IVAs. I don’t see any doped woofers. Dunlavey could have started using them towards the end of production, however. Also, these may be replacements.
https://www.bing.com/images/search?q=dunlavy+sc+iv+speakers&id=492B42DFED1B9507AC188862B69C4A4C5...

https://www.madisoundspeakerstore.com/approx-8-woofers/scanspeak-classic-21w/8555-00-8-woofer/?gclid...

Nothing at all wrong with them!  I missed a pair an hour away from me for $800.  They sold in 8 hours... I just couldn’t figure out a way to get them home, or in my listening room.

They’re quite impressive speakers.  I don’t think you’ll be disappointed with them!