Upvote:1
As there are no further responses, I will close this question. It seems likely that autograph manuscripts of the NT were in use for 100 years or longer. Refer to "How Long Were Late Antique Books in Use? Possible Implications for New Testament Textual Criticism" by CRAIG A. EVANS Bulletin for Biblical Research Vol. 25, No. 1 (2015), pp. 23-37 See https://www.jstor.org/stable/26371610?seq=1#page_scan_tab_contents