Good evening Timor,
I am located in Salisbury, Maryland.
Hi Samuel. If you would be interested in Eastman Double X Negative your best choice would be Kodak directly. The last phone number I have to place an order is 800.621.3456. You've got to talk to them.
And of course there is ORWO with its UN54 ISO 100 film. But looks like ORWO is on the move again, so contact only by email.