This specific range (up to issue #1672) encompasses several eras of the publication:
Many of these historic issues are now considered public domain or part of digital preservation libraries for educational and historical research. Collezione Urania [0001 - 1672] Compresi supplementi (PDF) Urania Completa [0001 - 1672].rar
Directed by Monicelli, this era featured legends like Isaac Asimov, Arthur C. Clarke, and Robert A. Heinlein. This specific range (up to issue #1672) encompasses