The Lilly library has a Gutenberg bible on display and the page that it is open to varies. This week the page had a marginal comment in it, which is unusual for this particular copy, and I was hoping to understand what is written there. The image is given below. Note that the page has been cut and it's likely that some of the writing is missing on the right. So far I know that the first word is "hic." The context is that there's a marking written in the text between Luke 23:53 and 23:54, and the full page can be seen on page 101 in the (lower-quality) digital scan.
Based on insightful comments from Hugh and a lot of help from a friend, we've now sorted out what it reads:
hic continuand[i sunt] lectiones in refectori[o].
Note that lectiones is written lco with an abbreviation symbol. This translates to roughly "Continue reading here in the refectory."
The key point is that this marginal comment is one of six appearing in the gospels all of which indicate that the portion of the gospel concerning the death of Jesus should not be read in the refectory but only in church. As pointed out by Hugh, there's a very similar comment at the end of the passage in John which is not cut off and reads "Huiusque legitur in refectorio" and one in Matthew reading ""hic ... legendum est in refectorio et omissa passioni domini P.incipiendo est vespere autem sabbati."