I checked NADA, they have current values for one but not original values. So I called Indian. They didn't know. So I called the Indian Motorcycle Museum in Springfield and spoke with three people. The concensus is that if anyone would know, Maggie Humberston would but she's on vacation until next week. You can reach her at 1 800 625 7738, extension 311 when she gets back from vacation. She's the one who might know if they have any old magazine advertisements for a 1938 Indian Chief, and that's probably your best bet for finding out what the street price was.