I have a box of A3+ Hahnemuhle Photorag 308 - still one of the best fine art matt papers out there.
I dont need it - I purchased the box to print half a dozen images for a client who specifically requested this paper. I have only used 6 sheets - there are still 44 in the box (was a box of 50) all in as purchsed condition - never taken out of the plastic.
Box cost me close to $300 Australian - sell for $100 Australian + any shipping.