How do I tell if I have an authentic Romanian barrel. I bought a Romy G and was told it had an original barrel, How do I confirm that.

It should have some numbers stamped on the barrel in seemingly random areas which represent the size of parts that fit it.

dryflash3, since AK parts are starting to dry up thus you will see more folks in this situation. It may make the difference between getting a good deal and getting taken to the cleaners.  I bought one the last Romanian barrels that Apex gun Parts had in stock. OP, take off the handguards and gas tube. From a top view. Look down on the barrel and rotate the rifle to the charging handle side. You should see 6 stamped numbers. (Single and double digit) Starting 5 inches from the barrel outward. Best I can describe it.