I think I can accommodate those requests.
She's got a 4" barrel, and is chambered for 9mm Parabellum.
I tried to get a picture of the mark on the side of the bolt, but was not particularly successful.
The proofs on the side of the upper receiver.
Made in 1916.
The barrel is very high gloss... this is the best I could do on the Portuguese mark.
DWM
Sorry the pictures are not very good...