1. I have 2 Septuagints in my resources. Swete, H. B. (2009). The Old Testament in Greek: According to the Septuagint (Text) and Septuaginta: With morphology. 1979 (electronic ed.). Stuttgart: Deutsche Bibelgesellschaft. Which of these are considered more accurate or authoritative?
2. I'm assuming the original Septuagint has been lost and all we have are copies of copies. We have different Septuagint versions because the copies don't always agree. Is this a correct assumption?
Thanks for your help!