This filter was purchased brand new from B&H Photo Video for $253 at the same time as the latest version Canon 16-35mm II zoom lens. Never liked or used the Canon lens much (now sold), or needed this polarizer over the UV filter that was permanently on the lens - So this filter is as new/unused, perfect condition without any signs of use. (see photos)
Asking $210 with payment via Paypal, including free USPS USA domestic postage. Off mainland USA postage will be charged at cost. International buyers will be charged USPS International postage at cost & the filter will be sent to you as a gift.
I occasionally sell personally owned photographic gear on the big auction website for more than 11 years & proud to have 100% feedback from sales.