I'm trying to figure out how many different priniting there was of the first SR4 rulebook (not the 20th Anniversary Edition).

Electronically (PDF) there has only been 3 available versions:

Version 1.0 by FanPro LLC, Chicago, Illinois, USA. Based on first printing with additional corrections.

Version 1.0.5 by FanPro LLC, Chicago, Illinois, USA. Based on first printing with additional corrections. (In the actual PDF this is still noted as version 1.0, but it is slightly different from the first version 1.0, and commonly called version 1.0.5, or acr5 in the actual file name.)

Version 1.3 by FanPro LLC, Chicago, Illinois, USA. Based on second printing with additional corrections.

These are the only officially available PDFs of the 4th edition book. None of the CGL versions were ever available as PDFs for purchase.

But how many physical prinitngs was there produced?

Personally I have the following two:

Limited edition: First Printing by FanPro LLC, Chicago, Illinios, USA. Printed in the USA.

Corrected Fifth Printing (First Prinitng by Catalyst Game Labs)

Anybody knows which other versions were available?