The above PDF link contains scans of a complete, original Oahu catalog from 1939. I'm hoping that having a full catalog up on the net will start to help fix peoples' assumptions about model names and numbers and also "who made what."
I've added maker notes to the file on the right hand side of the pictures for reference.
This file is hosted at my Google Drive account but may be downloaded freely. Enjoy! Please share, save, host elsewhere, mirror it, and keep it in the public sphere for free use.