The aqua and gray strains were for sale earlier but now re-listing them with two other strains and a purple glass ring. The Knox strain comes with the original box and both box and strain are mint. Also a brown porcelain strain is mint as well. The gray strain is mint and the purple ring is mint. The aqua strain has what looks to be an open bubble on a ridge and a small chip on another ridge, both on the same side. Asking $45.00 U.S. shipped! I prefer checks but will accept PayPal in family/friends mode. First email as usual.