Worksman is the US manufacturer currently making these. They call them a "low gravity" bike, as did most makers besides Schwinn that I'm aware of. Pashley and some other European companies make them as well. I"ve got an Arpan version made in India. Note that a lot of these just have a big frame meant to hold a wicker basket, unlike the Schwinn Cycle Truck.
There's currently a Worksman on Ebay for $75 + $125 shipping. It's minus the original basket, minus the kickstand, and I don't think the stem and handlebars are original. That's be a great deal for local pickup, but more than I want to pay with the shipping. You can buy the Worksman basket separately.