You have a grade 1 Auto 5 made in 1938. It has the front trigger safety. auto5man
Try gunbroker.com in the barrel section.
50 USD
The barrel will be marked "Made in Belgium"
It will be marked on the receiver/barrel.
Which model is this? Simply check the barrel. It should say Made in Belgium if it was.
Usually located on the frame/reciever and/or barrel.
Please re ask. What is your question?
it would be stamped on the right side of the barrel.
OEM from Browning. Anything else will require a gunsmith.
Belgian proofmarks, year of manufacture, barrel inscription. == ==
Not in Belgium barrels
@ 40" or so depending on LOP and Barrel length.