Anybody seen these Koni's?

[DHDamo]

So today I'm playing cars and while its jacked up on stands, I decided to check out my Koni's (front).  I've had yellow ones before, and read up on the red ones (which these are) but I've not seen this adjustment method in my travels/research. They have a button at the top of the lower (chamber) part - when you press the button, it seems to have 3 positions when you rotate the upper relative to lower - which appear to be firm/med/soft - and the adjustments appear to work quite well.  Age is unknown as they came on the car I've for 8 or so months.  They also have a black plastic shroud covering the shaft which you have to unclip/slide down to get to the adjuster button. I had to pull em completely out to get to it.  Anyone seen these or know much about them?  84 GTV 2.0