There are five manuscripts of Tobit (4Q196-200), dating from the period between 100 BC to AD 25, found in Cave 4 in Qumran in 1952, but it was not until 1956 that the first report on the finds was published. The late
J.T. Milik reported about the discovery of what was then fragments three manuscripts of Tobit in the report. More fragments were eventually found (which was also announced by Milik) until five texts were found in total. However, while Milik worked on piecing the fragments from a period spanning from 1953 to 1960, he never got around to actually publishing them (one of the main criticisms levelled against him, in fact, is how he contributed to the long delay of getting the Dead Sea Scrolls into public view by not completing all the work on his portion - and quite an amount of the discovered fragments were under his lot). It was Fr. Joseph Fitzmyer who would complete the work and publish them in 1995 (
Discoveries in the Judaean Desert, volume 19).
All in all, these manuscripts (four in Aramaic, one in Hebrew) generally agree with the text of GII, but sometimes they also exhibit agreement with GI. (For example, in Tobit 14:2, 4Q196 (Aramaic) and 4Q200 (Hebrew) both agree with GI in stating that Tobit was fifty-eight when he became blind, as opposed to GII’s sixty-two.) In some instances, the text provided could be shorter or longer, or at times agree more with the
Vetus Latina versions over against GII. All in all, there are sixty-nine fragments or groups of fragments in these five texts: out of these sixty-nine, thirty-four tiny fragments are unidentified, giving us thirty-five identified fragments in total.
http://www.biologie.uni-hamburg.de/b-online/bibel/PB01_TOB.gif
4QTob ar[sup]a[/sup] (4Q196)
4QTob[sup]a[/sup] ar (4Q196, Aramaic, ca. 50-25 BC)
Fragments 1 (Tobit 1:17), 2 (1:19-2:2), 3 (2:3), 4 (2:10-11), 5 (3:5), 6 (3:9-15), 7 (3:17), 8 (4:2), 9 (4:5), 10 (4:7), 11 (4:21-5:1), 12 (5:9), 13 (6:6-8), 14 i (6:13-18), 14 ii (6:18-7:6), 15 (7:13), 16 (12:1), 17 i (12:18-13:6), 17 ii (13:6-12), 18 (13:12-14:3), 19 (14:7), 20-49 (??)
4QTob[sup]b[/sup] ar (4Q197, Aramaic, ca. 25 BC-AD 25)
Fragments 1 (Tobit 3:6-8), 2 (4:21-5:1), 3 (5:12-14), 4 i (5:19-6:12), 4 ii (6:12-18), 4 iii (6:18-7:10), 5 (8:17-9:4), 6-7 (??)
4QTob[sup]c[/sup] ar (4Q198, Aramaic, ca. 50 BC)
Fragments 1 (Tobit 14:2-6), 2 (14:10)
4QTob[sup]d[/sup] ar (4Q199, Aramaic, ca. 100 BC)
Fragments 1 (Tobit 7:11), 2 (14:10)
4QTob[sup]e[/sup] (4Q200, Hebrew, ca. 30 BC-AD 20)
Fragments 1 i (Tobit 3:6), 1 ii (3:10-11), 2 (4:3-9), 3 (5:2), 4 (10:7-9), 5 (11:10-14), 6 (12:20-13:4), 7 i (13:13-14), 7 ii (13:18-14:2), 8 (?), 9 (3:3-4?)
These fragments also exhibit some degree of minor variance with each other, which shows us that there was not really a fixed text of Tobit during the 1st century BC or the 1st century AD.