GM Vasja Pirc 1950 Dubrovnik

Went to Idrija today, visited the Pirc family.  Do you recognize the name? Yes, *that* Pirc.
Was kindly shown late Grandmaster Vasja Pirc's original 1950 Dubrovnik by his son. Here's are the pics:

Vasja Pirc Original Dubrovnik 1950 - 05
Note the tall knight and the queen’s crown. The design was changed slightly in late 1960’s. Compare with Bobby Fischer’s favorite 1970 Dubrovnik.
Vasja Pirc Original Dubrovnik 1950 - 01
The pieces are felted but *not* weighted.
Vasja Pirc Original Dubrovnik 1950 - 03Vasja Pirc Original Dubrovnik 1950 - 04Vasja Pirc Original Dubrovnik 1950 - 07Vasja Pirc Original Dubrovnik 1950 - 08Vasja Pirc Original Dubrovnik 1950 - 09Vasja Pirc Original Dubrovnik 1950 - 10
The set includes a big but simple felted chessbox. Field size 55 mm. Inside there is a metallic badge/pin with the inscription “IX. šah olimpijada Dubrovnik, Jugoslavija.”
Vasja Pirc Original Dubrovnik 1950 - 12Vasja Pirc Original Dubrovnik 1950 - 13
-Izmet