There are two pairs of the old style AXO Dually shoes on eBay. A size 44 European (a little less than a size 10 US) and a size 42 European (a little less than a size 8.5 US).
Thanks for the heads up John. Looks like both pairs went to unicyclists. I hope mine aren’t to small. At least it’s a less popular size, so it didn’t get bid way up like Nathans did.