Let's take a closer look at how Mark ends in Codex
Vaticanus ("Codex B"). The last page of Mark is shown in
picture #1. The text of 16:8 ends in the 31st line of the second
42-line column of a three-column page, accompanied by an
ornamental design. Further down is the subscription "KATA
MARKON" ("according to Mark"). The third column is
blank. If a copyist were to start writing verses 9-20 at the
point where 16:8 ends, using the same handwriting used in the
first two columns, he would reach the end of the page with 67
letters (four lines' worth of text) left to write (as shown in
picture #2). If, instead, a copyist were to start writing the
Shorter Ending at the point where 16:8 ends, he would finish
the text in column two (as shown below, in picture #3). A
copyist could fit verses 9-20 on the page, though, by using
slightly compressed lettering (as shown below in picture #4).

The blank space here between Mark and Luke (Luke 1:1
begins on the opposite side of the page) is unique in this
manuscript. There are no other blank columns in its New
Testament portion. In the Old Testament portion of Codex
B, there are three other blank spaces between books, but
each one was caused by incidental factors in volved in the
production of the Codex. A blank space appears after the
Apocrypha-book of Tobit, but this is merely leftover space,
where one copyist completed his assigned portion of work.
After that blank space, the handwriting belongs to a different
copyist. Another blank space appears between the book of
Second Esdras and the book of Psalms, but this is not
surprising because the text of Second Esdras (like most of
the text in the codex) is arranged on the page in three
columns, but the books of Poetry, beginning with Psalms,
are written in two columns per page. So unless Second Esdras
had happened to end in the final column on the page, blank
space at this point would be inevitable. The third blank space
appears after the book of Daniel, but this is not surprising
because that is where the entire Old Testament portion comes
to a close. The Gospel of Matthew begins on the next page.
Clearly none of the factors that caused the blank spaces in the
Old Testament portion were in play here at the end of Mark.
This deliberately placed blank column between Mark 16:8
and Luke 1:1 is indeed unique.

Almost certainly, the copyist left this blank space in Codex B
because although he was using an exemplar in which Mark
ended at the end of verse 8, he recollected verses 9-20.
Unsure of how he should proceed, he followed his exemplar
but left space for the missing passage, so as to leave his
supervisor, or an eventual user of the codex, free to decide
whether to add verses 9-20 or not.

A less likely possibility is that the copyist had two exemplars,
one with the Shorter Ending and one with verses 9-20, and he
cleverly formatted the text so that his supervisor, or an
eventual user of the codex, would have the options of adding
the Shorter Ending (which, if begun on the line below 16:8,
could easily be extended into the third column), or adding
verses 9-20 (with slightly compressed lettering it would
conclude near the end of the third column).


Codex Vaticanus and the Ending of Mark
A reconstruction of the last third of the
second column, with the Shorter Ending
added. If the copyist had intended to
leave space for the Shorter Ending, he
wouldn't have needed to leave the third
column blank. The subscription would
thus be in the lower margin, but this
occurs in two other places in the codex
(at the end of Luke and at the end of
Philippians); the copyist did not see
that as a problem.
A reconstruction of the last two columns on the page,
with Mark 16:9-20 added in slightly compressed handwriting.
The Alexandrian variant "And in their hands" is included in 16:18.

The last page of Mark in Codex Vaticanus.
A reconstruction of the last page of Mark in Codex Vaticanus,
with Mark 16:9-20a added in the copyist's normal handwriting.
Sixty-seven letters in 16:20 remain unwritten.
4
1
3
2