Rare, and she's a beauty!
The Canon 85mm 1.8 in Leica Screw Mount, adaptable to use with Leica M rangefinders, Sony NEX, micro 4/3... (I've got a good quality Voigtlander 28-90 adapter for $20 if you need it for M mount).
No oil on blades, no issues with the glass.
$860 PayPal and Shipped from Washington DC area to CONUS.
International please contact me to discuss shipping and payment.
Canon Camera Museum info click
Complete slideshow images of this lens for sale click