Hey there!
If you're just looking for a transcript, this is the 4th section of the Kryptos code:
"OBKR
UOXOGHULBSOLIFBBWFLRVQQPRNGKSSO
TWTQSJQSSEKZZWATJKLUDIAWINFBNYP
VTTMZFPKWGDKZXTJCDIGKUHUAUEKCAR"
...OBKR continues from the last line of the third section.
As your excerpt states, the code remains unsolved to this day, so I couldn't tell you what it actually means. There are many proposed metaphorical solutions to the code, but none are universally recognized as the answer. You could do a search to see if there are any proposed solutions that you find plausible if you're curious.
Hope this helped you out! :-)