Don't have Telegram yet? Try it now!
https://euzicasa.wordpress.com/2013/08/02/this-day-in-the-yesteryear-operation-sunshine-first-crossing-of-a-submerged-vessel-at-north-pole-1958/
This Day in the Yesteryear: OPERATION SUNSHINE: FIRST CROSSING OF A SUBMERGED VESSEL AT NORTH POLE (1958)