This was an impulse purchase a few years ago, but I've only rarely used it and have decided to find it a new home. I just had it on my M7 body to check its operation and it still works fine, with smooth focus and typical super-accurate Mamiya electronic shutter. It comes with the parallax-corrected finder that provides a larger image for more accurate framing for both this and the 150mm, plus the original hood, caps, and original box with fitted styrofoam inserts. The lens is in truly outstanding condition, with just a tiny bit of dust of the front that I didn't properly clean off before taking the photos, and only the slightest indications of use.
A prior owner removed the UPC from the box, Mamiya must have been running a promo. At least they were neat about it.
The 210mm does not couple with the Mamiya 7's rangefinder. You'll need to use a separate rangefinder and scale-focus.
$625 includes insured shipping within the US. PayPal OK.