Since I started this thread many months ago, I thought I would read through it again now that I have my AOB 1928 AC. If any of you are still interested in additional pictures or further information, please let me know. Now that I have it in my possession it will be much easier. Although whoever groud off the "US" marking did a poor job, overall I'm pleased with the gun. I ran a few mags through it at my gun club yesterday without any issues - also made a kid's day letting him shoot it.