The above is a nice, unmarked, but probably Regal-made all-mahogany flatback. I've seen this same or similar model with SS Stewart and L&H brands. Click here for the full blog post on it.
And here's a teens-era Oscar Schmidt build, also unlabeled. I see this with the Sovereign and Victoria names from time to time, though. Click here for that full blog post/more pics.
It's nice to be working on some mandolins for a change, lately. I've had tons of banjos and guitars through the shop, but not many mandos.