History: The USS Sennet SS-408 - Operation “Highjump,” the third Byrd Antarctic Expedition - USN photo courtesy of Arctic Submarine Laboratory c.1947 [1079x973]

https://i.redd.it/h1di2yi9cc961.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/kqc6yp/the_uss_sennet_ss408_operation_highjump_the_third/?utm_source=ifttt