Welcome to the Forum, didactic.
There were two contracts for the 1917 Brazilian revolvers. The first ones were built in the late 1930s and have the square notch rear sight. There was a later shipment of Brazilians in the late 1940s that was built on surplus WW I 1917 frames.
Collectors prefer the US Army marked 1917s.
Are the grips matched to the revolver, with the serial number stamped on the inside?
When these revolvers came back into the US, most often they were just dumped in crates and shipped. It is rare to find a Brazilian that has a good finish.
There were two contracts for the 1917 Brazilian revolvers. The first ones were built in the late 1930s and have the square notch rear sight. There was a later shipment of Brazilians in the late 1940s that was built on surplus WW I 1917 frames.
Collectors prefer the US Army marked 1917s.
Are the grips matched to the revolver, with the serial number stamped on the inside?
When these revolvers came back into the US, most often they were just dumped in crates and shipped. It is rare to find a Brazilian that has a good finish.