All 24/47s are refurbed model 1924s.
For one thing, the Yugos didn't have their arms making capability rebuilt then. That's why the extensive refurb program.
Consider too, the original "MOHEN1924" was stamped on top of the receiver under the crest. So the new 24/47 stamp on the side was a whole new marking as was the Commie crest.
The all was reblued.