All this talk about automatics got me thinking about one I found in a gunshow 20 years ago.... the seller said it came from an estate sale, but it's not clear who made the thing.
I'm hoping that Bill DeShivs or some other blade expert might recognize it.
Coil spring auto, 10.5 inches overall, 7 ounces, no markings at all.
Anodized aluminum handle, 0.75 inches thick, with scroll work and ivory(?) inserts.