At Starbase 11 in "Court Martial", Commodore Stone had a chart entited "Star Ship Status" with NCC numbers and percentages of completion, presumably of repairs like those for the Enterprise.
Due to the focus, angle, and the font itself, folks have had issues distinguishing the digits even in the age of enhanced resolution from the Remastered show. However, there's a very simple fix for that, as many programs allow a deskew option these days, especially on mobile operating systems where a "scan" of a document via photograph may need to be straighted up.
