Hello everyone! I recently became the proud owner of an Osborne-1. However, upon removing the faceplate and pulling out the guts, I have found that the system is stock to the original Osborne configuration, with the only real upgrades being being to the chips. (I have the original upgrade letters from Osborne, I'll have to check them and see what specifically was upgraded when I get home from work.)

Does anyone know if it's at all possible to pick up a double density daughtercard? I've poked around on eBay, but haven't come up with anything. Thanks!