Below is a modified photo of Plimpton 322 showing (what I believe to be) some hidden-in-plain-sight elevens (11s). [source]
![[source]](https://commons.wikimedia.org/wiki/File:Plimpton_322.jpg){kind=link}
If you text search the Wikipedia page (about 12 pages), there is no reference to this (despite a lot of authors and hypotheses being presented).
I researched other sources, and I found one source that transcribes the elevens as "ki", although I have yet to find a source that raises the possibility these are elevens. I read elsewhere that eleven is usually written differently with overlapping numerals.
With respect to circumstantial evidence of correctness, the translation of the column header seems to normally be "line". Modern English would typically interpret this as a line of text, but I think there's a possibility the word was used for geometric lines. You can even see a column separator that seems to group the two numbers together, indicating the possibility they are a fraction or an $(x, y)$ coordinate.
If you consider this fraction interpretation, the value becomes $\frac{11}{11}$ on row 11, which is notably alongside the data for a scaled-up $(3, 4, 5)$ triangle.
Is there a discussion of Plimpton 322 that considers the possibility of these elevens (11s) being the denominators of fractions? I have written about it, but I am curious if others have.