0:31:50 > 0:31:57.
0:32:07 > 0:32:09It's a very special key.
0:32:09 > 0:32:12And to think that it actually opened doors on board Titanic...
0:32:14 > 0:32:18Samuel Hemming had been a seaman since he was 15.
0:32:18 > 0:32:23He was in charge of trimming the lamps on board the ship.
0:32:23 > 0:32:25As Titanic was going down,
0:32:25 > 0:32:27he got out of bed and put on his coat,
0:32:27 > 0:32:30which had all of these keys in the pockets.
0:32:32 > 0:32:33Captain Smith asked him to go
0:32:33 > 0:32:39and ensure there was lights on all of the lifeboats.
0:32:39 > 0:32:43He stayed at his post until the very end, and when he realised,
0:32:43 > 0:32:45finally, that there was no hope,
0:32:45 > 0:32:47he climbed down the side of the ship
0:32:47 > 0:32:52and swam to lifeboat number four and was hauled in there.
0:32:52 > 0:32:54And that's what saved his life.